0001628280-23-010227 | 10-K | XBRL Viewer | Greenidge Generation Holdings INC

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MERGER WITH SUPPORT.COM - Identifiable Intangible Assets Determined on a Preliminary Basis (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Total identifiable intangible assets, fair value	$ 3,810
Customer relationships
Business Acquisition [Line Items]
Useful Life	4 years
Total identifiable intangible assets, fair value	$ 3,320
Tradename
Business Acquisition [Line Items]
Useful Life	5 years
Total identifiable intangible assets, fair value	$ 490

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation and Principles of Consolidation

The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP").

Greenidge is the successor entity for accounting purposes to Greenidge Generation Holdings LLC ("GGH") as a result of the corporate restructuring consummated in January 2021. Pursuant to this restructuring, Greenidge was incorporated in the State of Delaware on January 27, 2021 and on January 29, 2021, entered into an asset contribution and exchange agreement with the owners of GGH, pursuant to which Greenidge acquired all of the ownership interests in GGH in exchange for 28,000,000 shares of Greenidge’s class B common stock. As a result of this transaction, GGH became a wholly-owned subsidiary of Greenidge. The financial information presented herein are that of GGH for the periods before January 29, 2021 and Greenidge for the period after January 29, 2021.

The consolidated financial statements include the accounts of Greenidge and its subsidiaries. All significant intercompany accounts and transactions have been eliminated.

Going Concern

In accordance with the FASB Accounting Standards Update ("ASU") 2014-15, Presentation of Financial Statements – Going Concern, the Company’s management evaluated whether there are conditions or events that pose risk associated with 6the Company's ability to continue as a going concern within one year after the date these financial statements have been issued. The Company’s consolidated financial statements have been prepared assuming that it will continue as a going concern.

During the year ended December 31, 2022, the price of bitcoin decreased approximately 40% and the price of natural gas increased approximately 83%. The Company’s profit and cash flows are impacted significantly by volatility in the prices of bitcoin and natural gas, and the volatility in these commodity prices significantly impacted the Company's results during 2022. As a result, management took certain actions during the second half of 2022 and during the first quarter of 2023 to improve the Company's liquidity. At December 31, 2022, the Company had $15.2 million of cash and cash equivalents and $0.5 million of bitcoin holdings at fair value, while having $20.9 million of accounts payable and accrued expenses, as well as $80.2 million of principal and interest payments on debt due within the next 12 months.

The ability to continue as a going concern is dependent upon the Company generating profitable operations in the future and/or obtaining the necessary financing to meet its obligations and repay its liabilities arising from normal business operations when they come due. In an effort to improve liquidity, on January 30, 2023, the Company entered into debt restructuring agreements with NYDIG ABL LLC ("NYDIG") and B. Riley Commercial Capital ("B. Riley"). The Company also raised equity through issuances of their stock under equity purchases agreements and a market issuance sales agreement (the "ATM Agreement"). See Note 6, "Debt" for further details regarding the debt restructuring agreements and see Note 7, "Stockholder's Equity" for further details regarding the equity purchase agreements and ATM Agreement.

The restructuring of the NYDIG debt is expected to significantly improve Greenidge’s liquidity during 2023 as annual interest payments on the remaining $17.3 million principal balance will be $2.5 million and may be reduced to approximately $1.1 million annually if the Post-Closing Covenant is satisfied. This reduced debt service is substantially lower than the $62.7 million of principal and interest payments which would have been required in 2023 pursuant to the 2021 and 2022 Master Equipment Finance Agreements, both of which have now been refinanced in January 2023.

Since October 2021 and through September 2022, the Company received proceeds of $59.8 million from sales of class A common stock under the original and amended Equity Purchase Agreements, of which $8.9 million proceeds, net of discounts, was received in 2022. In September 2022, Greenidge entered into an ATM Agreement, and since September 30, 2022 through March 30, 2023, have received net proceeds of $10.2 million from sales of class A common stock under the ATM Agreement, of which $8.2 million of net proceeds was received since January 1, 2023. See Note 7, "Stockholder's Equity", for further details.

In conjunction with the restructuring of the debt with NYDIG, we also entered into the Hosting Agreement with NYDIG on January 30, 2023, which is expected to improve our liquidity position, as it provided for cost reimbursements for key input costs, while allowing us to participate in the upside as bitcoin prices rise.

In addition, we sold equipment, coupons and certain environmental credits for total proceeds of $11.7 million from the second quarter of 2022 through the first quarter of 2023 to raise additional funds.

Despite these improvements to the Company's financial condition, management expects that it will require additional capital in order to fund the Company’s expenses and to support the Company’s debt servicing requirements. Management continues to assess different options to improve its liquidity which include, but are not limited to:

•issuances of equity, including but not limited to issuances under the Equity Purchase Agreement and/or the ATM Agreement.

•entering into new third-party hosting agreements to house the approximately 1.1 EH/s of owned miners not currently operating following the transition to the NYDIG hosting agreement in February 2023.

•a sale of the Company's excess real estate at its South Carolina facility that is not used in its datacenter operations.

The Company estimates that its cash resources will fall below $10 million by the end of the first quarter of 2024, which would be considered an Event of Default under the Senior Secured Loan that would require the repayment of the loan balance if a waiver is not obtained from the lender. The Company's estimate of cash resources available to the Company through 2023 and through the first quarter of 2024 is dependent on completion of certain actions, including our ability to sell excess real estate in South Carolina, as mentioned above, as well as the completion of the Post Closing Covenant and bitcoin prices, blockchain difficulty levels and energy prices similar to the those experienced in the first two months of 2023. While bitcoin prices have begun to recover in the first quarter of 2023, management cannot predict when or if bitcoin prices will recover to prior levels, or volatility in energy costs. While the Company continues to work to implement options to improve liquidity, there can be no assurance that these efforts will be successful and the Company's liquidity could be negatively impacted by items outside of its control, in particular, significant decreases in the price of bitcoin, regulatory changes concerning cryptocurrency, increases in energy costs or other macroeconomic conditions and other matters identified in Part I, Item 1A "Risk Factors". Given this uncertainty regarding the Company's financial condition over the next 12 months, the Company has concluded that there is substantial doubt about its ability to continue as a going concern for a reasonable period of time.

Use of estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting periods.

Actual results could differ from those estimates. Significant estimates made by management include, but are not limited to, estimates of the recoverability and useful lives of long-lived assets, stock-based compensation, current and deferred income tax assets and liabilities, and environmental liabilities.

Significant Accounting Policies

Segment Reporting

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker ("CODM") in deciding how to allocate resources and in assessing performance. As of December 31, 2022, Greenidge operates in one operating and reporting segment. The Company’s cryptocurrency datacenter and power generation operations are located in the United States, and the Company views these operations as one operating segment as the CODM reviews financial information on a consolidated basis in making decisions regarding resource allocations and assessing performance.

The Company generates revenue primarily by earning bitcoin, with miners that are owned by the Company, as rewards and transaction fees for supporting the global bitcoin network. The Cryptocurrency Datacenter and Power Generation operations also sell surplus electricity generated by its power plant, and not consumed in cryptocurrency datacenter operations, to the NYISO power grid at prices set on a daily basis through the NYISO wholesale market. In addition, the Company receives revenues from the sale of its capacity and ancillary services in the NYISO wholesale market.

Discontinued Operations

The Company deems it appropriate to classify a component as a discontinued operation if the related disposal group meets all the following criteria: 1) The disposal group is a component of the Company; 2) The component meets the held-for-sale criteria; and 3) The disposal of the component represents a strategic shift that has a major effect on the Company's operations and financial results.

The contract for Support.com's largest customer was not renewed upon expiration on December 31, 2022. As a result of this material change in the business, management and the Board of Directors made the determination to consider various alternatives for Support.com, including the disposition of assets. As of December 31, 2022, the Company classified the Support.com business as held for sale and discontinued operations in these consolidated financial statements as a result of its strategic shift to strictly focus on its cryptocurrency datacenter and power generation operations.

Cash, Cash Equivalents, and Short-Term Investments

All liquid instruments with an original maturity, at the date of purchase, of 90 days or less are classified as cash equivalents. Cash equivalents and short-term investments consist primarily of money market funds, certificates of deposit, commercial paper, corporate notes and bonds, and U.S. government agency securities. The Company’s interest income on cash, cash equivalents and short-term investments is included in interest expense, net in the consolidated statements of operations.

The Company monitors its investments for impairment on a quarterly basis to determine whether a decline in fair value is other-than-temporary by considering factors such as current economic and market conditions, the credit rating of the security’s issuer, the length of time an investment’s fair value has been below the Company’s carrying value, the Company’s intent to sell the security and the Company’s belief that it will not be required to sell the security before the recovery of its amortized cost. If an investment’s decline in fair value is deemed to be other-than-temporary, the Company reduces its carrying value to the estimated fair value, as determined based on quoted market prices or liquidation values. Declines in value judged to be other-than-temporary, if any, are recorded in operations as incurred. The Company's short term investments of $0.5 million were marketable securities that approximated fair value as of December 31, 2021. The Company had no short term investments as of December 31, 2022.

Digital Assets

Digital assets, primarily consisting of bitcoin, are included in current assets in the accompanying consolidated balance sheets. Digital assets are classified as indefinite-lived intangible assets in accordance with ASC 350, Intangibles – Goodwill and Other, and are accounted for in connection with Greenidge’s revenue recognition policy disclosed below. Digital assets held are considered an intangible asset with an indefinite useful life, which is not amortized but assessed for impairment annually, or more frequently, when events or changes in circumstances occur indicating that it is more likely than not that the indefinite-lived asset is impaired.

The Company performs an analysis each period to identify whether events or changes in circumstances, principally decreases in the quoted prices on active exchanges, indicate that it is more likely than not that its digital assets are impaired. Digital assets are considered impaired if the carrying value is greater than the lowest daily quoted prices at any time during the period. Subsequent reversal of impairment losses is not permitted. The Company assessed its digital assets for impairment, recorded an impairment of $0.1 million during the year ended December 31, 2022, which is included in Other income, net on the consolidated statements of operations. There were no impairments recorded during 2021. As of December 31, 2022 and 2021, the Company’s digital assets consisted of approximately 31.4 bitcoins compared to 29.0 bitcoins, respectively.

Accounts Receivable

We provide credit in the normal course of business to our power customer, the NYISO. The NYISO makes payments, depending on the type of revenue, within seven days of usage or seven days of month end. There are currently no accounts receivable associated with cryptocurrency datacenter revenues. We have not experienced any historic credit losses with our power customer and therefore, we have not established an allowance for doubtful accounts for the years ending December 31, 2022 and 2021.

Emissions Expense and Credits

The Company participates in the Regional Greenhouse Gas Initiative ("RGGI"), which requires, by law, that the Company remit credits to offset 50% of the Company’s annual emission expense in the following year, for each of the years in the three year control period (January 1, 2018 to December 31, 2020). In February 2021, the Company settled the emissions allowance for the control period. The Company continues to accrue for credits to be remitted in accordance with RGGI for the current control period (January 1, 2020 to December 31, 2023). The Company recognizes expense on a per ton basis, where one ton is equal to one RGGI credit.

The RGGI credits are recorded on a first in, first out ("FIFO") basis. The Company incurred emissions expense of $4.5 million and $2.6 million for the years ended December 31, 2022 and 2021, respectively, which was allocated between cost of revenue - cryptocurrency datacenter and cost of revenue - power and capacity, based on the relative percentage of MWH consumed for each, in the accompanying consolidated statements of operations.

Property and Equipment, net

Property and equipment are stated at cost, net of accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful lives of the Company’s depreciable assets, as noted in the table below. Construction in process is comprised of assets which have not been placed into service and is not depreciated until the related assets are complete and ready for their intended use, at which time the cost is transferred to the appropriate property and equipment class. Land and miner deposits are not depreciated. Repairs and maintenance costs are expensed as incurred. See Note 5, "Property and Equipment, Net" for additional information.


Asset Class			Estimated Useful Lives
Plant infrastructure			10 years
Miners			3 years
Miner facility infrastructure			10 years

Equipment			5 years
Software			3 years

Valuation of Long-Lived Assets

The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be fully recoverable. To determine recoverability of a long-lived asset, management evaluates whether the estimated future undiscounted net cash flows, based on prevailing market conditions, from the asset are less than its carrying amount. If impairment is indicated, the long-lived asset is written down to fair value. The Company recognized a noncash impairment charge of $176.3 million for the year ended December 31, 2022. There was no impairment charge in the year ended December 31, 2021. See Note 5, "Property and Equipment, Net" for additional information.

Environmental Liability

Environmental liabilities are recognized in accordance with ASC 410-30, Asset Retirement and Environmental Obligations when the costs are probable and estimable. As of December 31, 2022, we have recognized environmental liabilities for a coal ash pond and landfill which were inherited due to the legacy coal operations at the Company's property in the Town of Torrey, New York. The Company determines the estimate by developing key assumptions to determine the expected cost of remediation. Estimates are based on various assumptions that are sensitive to changes including, but not limited to, closure and post-closure cost estimates, timing of expenditures, escalation factors, and requirements of granted permits.

Revenue Recognition

The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers. The core principle of the revenue standard is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled to in exchange for those goods or services. The following five steps are applied to achieve that core principle:

•Step 1: Identify the contract, or contracts, with the customer;

•Step 2: Identify the performance obligations in the contract;

•Step 3: Determine the transaction price;

•Step 4: Allocate the transaction price to the performance obligations in the contract; and

•Step 5: Recognize revenue when, or as, the Company satisfies a performance obligation.

In order to identify the performance obligations in a contract with a customer, the Company must assess the promised goods or services in the contract and identify each promised good or service that is distinct. A performance obligation meets ASC 606’s definition of a "distinct" good or service (or bundle of goods or services) if both of the following criteria are met: The customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer (i.e., the good or service is capable of being distinct), and the entity’s promise to

transfer the good or service to the customer is separately identifiable from other promises in the contract (i.e., the promise to transfer the good or service is distinct within the context of the contract).

If a good or service is not distinct, the good or service is combined with other promised goods or services until a bundle of goods or services is identified that is distinct.

The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer. The consideration promised in a contract with a customer may include fixed amounts, variable amounts, or both. When determining the transaction price, an entity must consider the effects of all of the following:

•Variable consideration;

•Constraining estimates of variable consideration;

•The existence of a significant financing component in the contract;

•Noncash consideration; and

•Consideration payable to a customer.

Variable consideration is included in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. The transaction price is allocated to each performance obligation on a relative standalone selling price basis. The transaction price allocated to each performance obligation is recognized when that performance obligation is satisfied, at a point in time or over time as appropriate.

Cryptocurrency Datacenter Revenue

Greenidge has entered into digital asset mining pools by executing contracts with the mining pool operators to provide computing power to the mining pool. The contracts are terminable at any time by either party and Greenidge’s enforceable right to compensation only begins when Greenidge provides computing power to the mining pool operator. In exchange for providing computing power, Greenidge is entitled to a theoretical fractional share of the cryptocurrency award the mining pool operator receives less digital asset transaction fees to the mining pool operator. Revenue is measured as the value of the fractional share of the cryptocurrency award received from the pool operator, which has been reduced by the transaction fee retained by the pool operator, for Greenidge’s pro rata contribution of computing power to the mining pool operator for the successful solution of the current algorithm.

Providing computing power in digital asset transaction verification services is an output of Greenidge’s ordinary activities. The provision of providing such computing power is the only performance obligation in Greenidge’s contracts with mining pool operators. The cryptocurrency that Greenidge receives as transaction consideration is noncash consideration, which Greenidge measures at fair value on the date received, which is not materially different than the fair value at the contract inception or the time Greenidge has earned the award from the pools. The consideration is all variable. Because it is not probable that a significant reversal of cumulative revenue will not occur, the consideration is constrained until the mining pool operator successfully places a block (by being the first to solve an algorithm) and Greenidge receives confirmation of the consideration it will receive, at which time revenue is recognized.

Pool fees paid by miners to pooling operators are based on a fixed percentage of the theoretical bitcoin block reward and network transaction fees received by miners. Pooling fees are netted against daily bitcoin payouts. Greenidge does not expect any material future changes in pool fee percentages paid to pooling operators, however as pools become more competitive, these fees may trend lower over time.

Fair value of the cryptocurrency award received is determined using the quoted price on Greenidge’s primary exchange of the related cryptocurrency at the time of receipt.

There is currently no specific definitive guidance under U.S. GAAP or alternative accounting framework for the accounting for cryptocurrencies recognized as revenue or held, and management has exercised significant judgment in determining the appropriate accounting treatment. In the event authoritative guidance is enacted by the FASB, Greenidge may be required to change its policies, which could have an effect on the Company’s consolidated financial position and results of operations.

Power and capacity revenue

Greenidge recognizes power revenue at a point in time, when the electricity is delivered to the NYISO and its performance obligation is met. Greenidge recognizes revenue on capacity agreements over the life of the contract as its series of performance obligations are met as capacity to provide power is maintained.

Sales tax, value-added tax, and other taxes Greenidge collects concurrent with revenue-producing activities are excluded from revenue. Incidental contract costs that are not material in the context of the delivery of goods and services are recognized as expense. There is no significant financing component in these transactions.

Cryptocurrency Datacenter Cost of Revenue

Cost of revenue—cryptocurrency datacenter consists primarily of natural gas, emissions, payroll and benefits and other direct production costs associated with the megawatts generated for the digital mining operation. Cost of revenue – cryptocurrency datacenter does not include depreciation and amortization.

Power and Capacity Cost of Revenue

Cost of revenue—power and capacity consists primarily of natural gas, emissions, payroll and benefits and other direct production costs associated with the megawatts generated for the power produced by Greenidge and sold to the grid. Cost of revenue – power and capacity does not include depreciation and amortization.

Selling, General, and Administrative Expenses

Selling, general and administrative expenses consist primarily of administrative payroll and benefits, business development costs, professional fees, and insurance.

Stock-Based Compensation

The Company accounts for share-based payment awards exchanged for services at the estimated grant date fair value of the award. Stock options issued under the Company’s equity incentive plans are granted with an exercise price equal to no less than the market price of the Company’s stock at the date of grant and expire up to ten years from the date of the grants. These options generally vest on the grant date or over a three year period. The Company has elected to account for forfeitures of employee awards as they occur.

The Company estimates the fair value of the stock option grants using the Black-Scholes-Merton option pricing model and the assumptions used in calculating the fair value of stock-based awards represent management’s best estimates and involve inherent uncertainties and the application of management’s judgement.

Expected Term – The expected term of options represents the period that the Company’s stock-based awards are expected to be outstanding on the simplified method, which is the half-life from vesting to the end of its contractual term.

Expected Volatility – The Company computes stock price volatility over expected terms based on historical volatility of the Company’s common stock .

Risk-Free Interest Rate– The Company bases the risk-free interest rate on the implied yield available on U.S. Treasury zero-coupon issues with an equivalent remaining term.

Expected Dividend – The Company has never declared or paid any cash dividends on its common shares and does not plan to pay cash dividends in the foreseeable future, and, therefore, uses an expected dividend yield of zero in its valuation models.

Income Taxes

Prior to the formation of Greenidge on January 27, 2021, GGH was treated as a partnership for federal and state income tax purposes. Subsequent to the restructuring incurred on January 29, 2021, the Company accounts for income taxes in accordance with FASB ASC Topic 740, Income Taxes. Deferred income tax assets and liabilities are determined based on the differences between financial statement carrying amounts and the tax basis of existing assets and liabilities. These

differences are measured at the enacted tax rates that will be in effect when these differences reverse. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes.

A valuation allowance is required to be recognized if it is "more likely than not" that the deferred tax asset will not be realized. The determination of the realizability of the deferred tax assets is highly subjective and dependent upon judgment concerning management’s evaluation of both positive and negative evidence, the forecasts of future income, applicable tax planning strategies, and assessments of the current and future economic and business conditions.

The Company recognizes and measures tax positions taken or expected to be taken in its tax return based on their technical merit and assesses the likelihood that the positions will be sustained upon examination based on the facts, circumstances and information available at the end of each period. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as part of the provision for income taxes.

Income (Loss) Per Share

Basic net income (loss) per common share attributable to common shareholders is calculated by dividing net income (loss) attributable to common shareholders by the weighted average number of common shares outstanding for the period. Diluted net income (loss) per common share attributable to common shareholders is calculated by dividing net income (loss) attributable to common shareholders by the diluted weighted average number of common shares outstanding for the period. The Company used the weighted average method in determining earnings per share.

Fair Value Measurements

The Company determines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Inputs used in the valuation techniques to derive fair values are classified based on a three-level hierarchy. The basis for fair value measurements for each level within the hierarchy is described below, with Level 1 having the highest priority and Level 3 having the lowest. The three levels of the fair value hierarchy are as follows:

•Level 1 – inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities.

•Level 2 – inputs are quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in non-active markets; and model-derived valuations whose inputs are observable or whose significant valuation drivers are observable.

•Level 3 – inputs to valuation models are unobservable and/or reflect the Company’s market assumptions.

The fair value hierarchy is based on maximizing the use of observable inputs and minimizing the use of unobservable inputs when measuring fair value. Classification within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Company transfers the fair value of an asset or liability between levels of the fair value hierarchy at the end of the reporting period during which a significant change in the inputs used to determine the fair value has occurred.

Reclassifications

Certain prior year amounts have been reclassified to conform to the current year’s presentation. As of December 31, 2022, the Company reported it's Support.com business as discontinued operations. As a result, assets and liabilities related to the Support.com have been classified as held for sale for all periods presented. Additionally, amounts previously presented as part of continuing operations have been reclassified into discontinued operations for all periods presented.

Recent Accounting Pronouncements Not Yet Adopted

Any new accounting standards that have been issued or proposed by FASB that do not require adoption until a future date are not expected to have a material impact on the Company’s consolidated financial statements upon adoption.

Recent Accounting Pronouncements, Adopted

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes ("ASU 2019-12"), which is intended to simplify various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020, with early adoption permitted. As an emerging growth company, the Company elected to adopt this pronouncement following the effective date for private companies beginning with periods beginning after December 15, 2021. The Company adopted this standard on January 1, 2022, and the adoption did not materially impact the Company's consolidated financial statements.

INCOME TAXES - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Net operating loss carryforwards	$ 58,008	$ 21,716
Intangibles	1,674	268
Stock-based compensation	462	456
Capitalized costs	8,794	9,327
Interest Expense Limitation Carryforward	4,653	0
Environmental liabilities	4,538	0
Fixed Assets	3,672	0
Other	3,401	469
Gross deferred tax assets	85,202	32,236
Less: valuation allowance	(85,202)	(6,993)
Deferred tax assets, net	0	25,243
Deferred tax liabilities:
Investment in partnership	0	(8,891)
Property and equipment	0	(659)
Other	0	(635)
Deferred tax liabilities	0	(10,185)
Total net deferred tax assets	$ 0
Total net deferred tax assets		$ 15,058

SUBSEQUENT EVENTS (Details) - USD ($)				2 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($)	Jan. 30, 2023	Dec. 20, 2022	Mar. 18, 2022	Mar. 30, 2023	Dec. 31, 2022
Subsequent Event [Line Items]
Debt outstanding					$ 157,493,000
Subsequent Event
Subsequent Event [Line Items]
Hosting agreement, period	5 years
Hosting agreement, termination permissible by either party upon default, period	10 days
Hosting agreement, termination permissible by either party upon false or misleading information, period	10 days
Secured Promissory Note \| Secured Debt
Subsequent Event [Line Items]
Principal and interest amount due		$ 1,500,000	$ 1,500,000
Secured Promissory Note \| Subsequent Event \| Secured Debt
Subsequent Event [Line Items]
Principal and interest amount due	$ 0
Mandatory monthly payments, percentage of net proceeds of sales of equity	15.00%
Repayments of secured debt				$ 2,800,000
Secured Debt \| Master Equipment Finance Agreement
Subsequent Event [Line Items]
Debt outstanding					$ 75,800,000
Secured Debt \| Master Equipment Finance Agreement \| Subsequent Event
Subsequent Event [Line Items]
Debt outstanding	$ 17,300,000
Extinguishment of debt	$ 58,500,000

Cover Page - USD ($)	12 Months Ended
Cover Page - USD ($)	Dec. 31, 2022	Mar. 30, 2023	Jun. 30, 2022
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-40808
Entity Registrant Name	Greenidge Generation Holdings Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	86-1746728
Entity Address, Address Line One	135 Rennell Drive
Entity Address, Address Line Two	3rd Floor
Entity Address, City or Town	Fairfield
Entity Address, State or Province	CT
Entity Address, Postal Zip Code	06890
City Area Code	315
Local Phone Number	536-2359
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 35,114,779
Documents Incorporated by Reference	None.
Entity Central Index Key	0001844971
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false
Class A Common Stock, $0.0001 par value
Document Information [Line Items]
Title of 12(b) Security	Class A Common Stock, $0.0001 par value
Trading Symbol	GREE
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		31,271,755
8.50% Senior Notes due 2026
Document Information [Line Items]
Title of 12(b) Security	8.50% Senior Notes due 2026
Trading Symbol	GREEL
Security Exchange Name	NASDAQ
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		28,526,372

PROPERTY AND EQUIPMENT, NET

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

PROPERTY AND EQUIPMENT, NET

Property and equipment, net consisted of the following at December 31, 2022 and 2021:


$ in thousands	Estimated Useful Lives	December 31, 2022		December 31, 2021
Plant infrastructure	10 years	$	—	$	34,725
Miners	3 years	81,979		48,121
Miner facility infrastructure	10 years	14,203		15,143
Land	N/A	8,460		8,460
Equipment	5 years	45		226
Software	3 years	—		186
Coal ash impoundment	4 years	—		2,410
Construction in process	N/A	18,349		25,856
Miner deposits	N/A	7,381		98,110
		130,417		233,237
Less: Accumulated depreciation		—		(17,225)
		$	130,417	$	216,012

Total depreciation expense was $35.1 million and $8.5 million for the years ended December 31, 2022 and 2021, respectively.

The Company has reevaluated the useful lives of the assets and effective July 1, 2022, adjusted the lives of the miners from 5 years to 3 years, the lives of plant infrastructure from 15 - 39 years to 10 years and the lives of miner facility infrastructure from 15 years to 10 years.

As a result of the significant reduction in the price of bitcoin and increased energy prices during 2022, the Company recognized noncash impairment charges of $176.3 million to reduce the net book value of the long-lived assets to fair value. Fair value was determined utilizing the market approach.

PROPERTY AND EQUIPMENT, NET - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Depreciation expense			$ 35,100	$ 8,500
Impairment of long-lived assets			$ 176,307	$ 0
Miners
Property Plant And Equipment [Line Items]
Estimated useful lives	3 years	5 years	3 years
Plant infrastructure
Property Plant And Equipment [Line Items]
Estimated useful lives	10 years		10 years
Plant infrastructure \| Minimum
Property Plant And Equipment [Line Items]
Estimated useful lives		15 years
Plant infrastructure \| Maximum
Property Plant And Equipment [Line Items]
Estimated useful lives		39 years
Miner facility infrastructure
Property Plant And Equipment [Line Items]
Estimated useful lives	10 years	15 years	10 years

STOCKHOLDERS' EQUITY	12 Months Ended
STOCKHOLDERS' EQUITY	Dec. 31, 2022
Equity [Abstract]
STOCKHOLDERS’ EQUITY	STOCKHOLDERS’ EQUITY Authorized Shares On September 13, 2021, Greenidge filed an amendment to its certificate of incorporation to increase the authorized capital stock. Pursuant to the amended and restated certificate of incorporation, Greenidge’s authorized capital stock consists of 2,400,000,000 shares of class A common stock, par value $0.0001 per share, 600,000,000 shares of class B common stock, par value $0.0001 per share, and 20,000,000 shares of preferred stock, par value $0.0001 per share. Contribution and Exchange Agreement In January 2021, GGH completed a corporate restructuring. Pursuant to this restructuring, Greenidge was formed and incorporated in the State of Delaware on January 27, 2021. On January 29, 2021, Greenidge entered into an asset contribution and exchange agreement with the members of GGH, in which the GGH members’ equity interests and outstanding notes payable to related parties and all accrued but unpaid interest were contributed into Greenidge in exchange for 7,000,000 shares of Greenidge class B common stock (28,000,000 shares following the 4-for-1 stock split). As a result of this transaction, GGH became a wholly owned subsidiary of Greenidge. Private Placement Offering of Preferred Stock In January 2021, Greenidge completed a private placement offering in which 1,620,000 shares of series A redeemable convertible preferred stock was sold at $25 per share. Total net proceeds from the private placement offering were $37.1 million. Under the terms of the private placement memorandum in connection with the preferred stock offering, each share of preferred stock was automatically converted to four shares of class B common stock when the Company’s registration statement to register such shares for resale was declared effective by the Securities and Exchange Commission. During September 2021, this preferred stock was converted into 5,760,000 shares of class A common stock and 720,000 shares of class B common stock. There are no outstanding shares of preferred stock as of December 31, 2022. Equity Issuances Associated with the Merger In connection with the completion of the Merger, the Company issued 2,960,731 shares of class A common stock in consideration for all of the outstanding shares of Support.com. The fair value of the common shares issued to Support.com shareholders was $93.9 million (see Note 3), or $91.6 million, net of issuance costs. Additionally, pursuant to the Merger Agreement, the Company issued the following equity instruments in connection with the performance of consulting services leading to and in connection with the Merger at the time of the closing, as the issuance of these instruments were contingent upon successful completion of the Merger: •562,174 shares of class A common stock with a fair value of $17.8 million issued to an investor, which owned approximately 16.6% of Support.com common stock and made a prior investment in Greenidge preferred stock, which was described previously; and •Warrants to purchase 344,800 shares of class A common stock at an exercise price of $6.25 per share of class A common stock to B. Riley Securities, Inc., which were exercised shortly thereafter. The fair value of the warrants at issuance was $8.8 million. Common Stock Holders of Greenidge’s class A common stock are entitled to one vote per share. Holders of class B common stock are entitled to ten votes per share. Class A and class B shares issued and outstanding as of December 31, 2022 are 17,726,407 and 28,526,372, respectively. Each share of class B common stock is convertible into one share of class A common stock at the option of the holder upon written notice to the Company. Shares of class B common stock will automatically convert to shares of class A common stock upon a mandatory conversion event as defined in the amended and restated certificate of incorporation dated March 26, 2021. Common Units In October 2018, GGH adopted an equity incentive plan and allocated 1,250 common units to the plan. In 2018, GGH awarded 750 restricted units to certain board members, subject to various vesting provisions. In January 2021, in conjunction with the private placement offering, the 750 GGH common units were converted to shares of Greenidge’s class B common stock. Preferred Units GGH preferred unit holders were entitled to one vote per preferred unit. In the event of liquidation or dissolution of GGH, the holders of preferred units were entitled to receive distributions, prior to and in preference to the holders of common units. All preferred units were converted to shares of the Company’s class B common stock in connection with the contribution and exchange agreement in January 2021. Senior Priority Units There were two tranches of GGH Senior Priority Units: Tranche 1 was equal to $13.9 million and Tranche 2 was equal to $16.3 million. Tranche 1 Senior Priority Units were issued to Atlas in July 2020 in exchange for the conversion of certain notes payable due to Atlas and all accrued but unpaid interest thereon. Tranche 2 Senior Priority Units were issued to Atlas in conjunction with Atlas contributing its equity interest in Blocker to GGH. Senior Priority Units had no voting rights. All senior priority units were converted to shares of the Company’s class B common stock in connection with the contribution and exchange agreement in January 2021. Equity Purchase Agreement with B. Riley Principal Capital, LLC On September 15, 2021, Greenidge entered into a common stock purchase agreement (the "2021 Purchase Agreement") with B. Riley Principal Capital, LLC (the "Investor") pursuant to which Greenidge has the right to "put" or sell to the Investor up to $500 million of shares of class A common stock, subject to certain limitations and conditions set forth in the 2021 Purchase Agreement, from time to time during the term of the 2021 Purchase Agreement. The per share purchase price for the shares of class A common stock that Greenidge elected to sell to the Investor pursuant to the 2021 Purchase Agreement was determined by reference to the volume weighted average price of class A common stock during the applicable purchase date on which Greenidge had timely delivered written notice to the Investor directing it to purchase shares under the 2021 Purchase Agreement, less a fixed 5% discount, which was to be increased to a fixed 6% discount at such time that the Company received aggregate cash proceeds of $200 million as payment for all shares of class A common stock purchased by the Investor in all prior sales of class A common stock made under the 2021 Purchase Agreement. The Investor had no obligation to purchase shares pursuant to the 2021 Purchase Agreement to the extent that such purchase would have caused the Investor to own more than 4.99% of the Company’s issued and outstanding shares of class A common stock. Greenidge and the Investor entered into a mutual termination agreement on April 6, 2022 (the "Mutual Termination"), which became effective immediately upon signing. Prior to the termination, the Company had sold an aggregate of 2,547,500 shares of class A common stock pursuant to the 2021 Purchase Agreement representing proceeds of $54.9 million, net of discounts, under the 2021 Purchase Agreement. The Company did not incur any early termination penalties as a result of the Mutual Termination. On April 7, 2022, Greenidge entered into a new common stock purchase agreement, as amended by Amendment No. 1 to Common Stock Purchase Agreement, dated as of April 13, 2022 (as amended, the "2022 Purchase Agreement") with the Investor. Pursuant to the 2022 Purchase Agreement, Greenidge has the right to sell to the Investor up to $500 million in shares of its class A common stock, subject to certain limitations and the satisfaction of specified conditions in the 2022 Purchase Agreement, from time to time over the 24-month period commencing on April 28, 2022. The per share purchase price for the shares of class A common stock that Greenidge elects to sell to the Investor pursuant to the 2022 Purchase Agreement will be determined by reference to the volume weighted average price of the class A common stock ("VWAP") during the full primary (or "regular") trading session on Nasdaq on the applicable purchase date, calculated in accordance with the 2022 Purchase Agreement, or, if the total aggregate number (or "volume") of class A common stock traded on Nasdaq reaches a certain threshold amount (calculated in accordance with the 2022 Purchase Agreement) prior to the official close of the regular trading session on Nasdaq on such purchase date, then the VWAP will be calculated only for the period beginning at the official open (or "commencement") of the regular trading session and ending at the time the volume of class A common stock traded on Nasdaq reaches such threshold amount (such period for each purchase, the "Purchase Valuation Period"), less a fixed 5% discount to the VWAP for the Purchase Valuation Period, which shall be increased to 6% at such time that Greenidge has received aggregate cash proceeds of $200 million from all prior sales of class A common stock to the Investor under the 2021 Purchase Agreement and the 2022 Purchase Agreement. The per share purchase price for the shares of class A common stock that Greenidge elects to sell to the Investor in an intraday purchase pursuant to the 2022 Purchase Agreement will be calculated in the same manner as in the case of a regular purchase, provided that the VWAP for such intraday purchase will be measured during the portion of the normal trading hours on Nasdaq on the applicable purchase date that will begin 30 minutes after the latest of (i) the time that the applicable intraday purchase notice is timely received by the Investor, (ii) the time that the Purchase Valuation Period for any prior regular purchase effected on the same purchase date (if any) has ended and (iii) the time that the Intraday Purchase Valuation Period (defined below) for the most recent prior intraday purchase effected on the same purchase date (if any) has ended, and ending at the earlier of (x) the official close of the regular trading session on Nasdaq on such purchase date and (y) the time the volume of shares of class A common stock traded on Nasdaq reaches a certain threshold amount calculated in accordance with the 2022 Purchase Agreement (such period for each intraday purchase, the "Intraday Purchase Valuation Period"), less a fixed 5% discount to the VWAP for the Intraday Purchase Valuation Period, which shall be increased to 6% at such time that Greenidge has received aggregate cash proceeds of $200 million from all prior sales of class A common stock to the Investor under the 2021 Purchase Agreement and the 2022 Purchase Agreement. In addition, on April 13, 2022, Greenidge entered into Amendment No. 1 to the 2022 Purchase Agreement (the "Amendment") with the Investor. The Amendment provides for an additional feature that would cause the period used to determine the applicable purchase price to be paid by the Investor for shares elected to be sold by Greenidge to terminate on the applicable purchase date if the trading price of the class A common stock falls below a minimum price threshold. The Amendment also modifies the maximum amount of shares of Greenidge’s class A common stock that Greenidge can elect to sell to the Investor in any single purchase effected by Greenidge. Under the applicable Nasdaq rules, unless stockholder approval is obtained, Greenidge may not sell more than 19.99% of the total number of shares of its class A common stock and class B common stock issued and outstanding immediately prior to the execution of the 2022 Purchase Agreement, which number of shares shall be reduced on a share-for-share basis by the number of shares of class A common stock that may be aggregated with the transactions contemplated by the 2022 Purchase Agreement under the applicable Nasdaq rules. Sales of common stock pursuant to the 2022 Purchase Agreement, and the timing of any sales, are solely at the option of the Company, and the Company is under no obligation to sell any securities to the Investor under the 2022 Purchase Agreement. In connection with the 2022 Purchase Agreement, Greenidge entered into a registration rights agreement with the Investor, pursuant to which Greenidge agreed to prepare and file a registration statement registering the resale by the Investor of those shares of Greenidge’s class A common stock to be issued under the 2022 Purchase Agreement. The registration statement became effective on April 28, 2022 (the "Effective Date"), relating to the resale of 5,720,951 shares of Greenidge’s class A common stock in connection with the 2022 Purchase Agreement. From the Effective Date to December 31, 2022, Greenidge issued 1,599,229 shares of class A common stock to the Investor pursuant to the 2022 Purchase Agreement for aggregate proceeds of $5.0 million, net of discounts. At The Market Issuance Sales Agreement with B. Riley Securities On September 19, 2022, as amended on October 3, 2022, Greenidge entered into the ATM Agreement with B. Riley and Northland, relating to shares of Greenidge’s class A common stock. Under the ATM Agreement, B. Riley will use its commercially reasonable efforts to sell on Greenidge’s behalf the shares of Greenidge’s class A common stock requested to be sold by Greenidge, consistent with B. Riley’s normal trading and sales practices, under the terms and subject to the conditions set forth in the ATM Agreement. Greenidge has the discretion, subject to market demand, to vary the timing, prices and number of shares sold in accordance with the ATM Agreement. B. Riley may sell the Company’s class A common stock by any method permitted by law deemed to be an "at the market offering" as defined in Rule 415(a)(4) promulgated under the Securities Act. Greenidge will pay B. Riley commissions for its services in acting as sales agent, in an amount equal to up to 5.0% of the gross proceeds of all class A common stock sold through it as sales agent under the ATM Agreement. Pursuant to the registration statement filed registering shares to be sold in accordance with the terms of the ATM Agreement, Greenidge may offer and sell shares of its class A common stock up to a maximum aggregate offering price of $22,800,000. From October 1, 2022 through March 30, 2023, Greenidge issued 15,000,800 shares under the ATM Agreement for net proceeds of $10.2 million, of which 2,881,536 shares were issued for net proceeds of $2.1 million through December 31, 2022. Additionally, Greenidge issued 1,333,333 shares to B. Riley as payment of an amendment fee on the Promissory Note in February 2023.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment, Net Useful Lives (Details)	6 Months Ended		12 Months Ended
	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2022
Plant infrastructure
Property Plant And Equipment [Line Items]
Estimated useful lives	10 years		10 years
Miners
Property Plant And Equipment [Line Items]
Estimated useful lives	3 years	5 years	3 years
Miner facility infrastructure
Property Plant And Equipment [Line Items]
Estimated useful lives	10 years	15 years	10 years
Equipment
Property Plant And Equipment [Line Items]
Estimated useful lives			5 years
Software
Property Plant And Equipment [Line Items]
Estimated useful lives			3 years

CONDOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
OPERATING ACTIVITIES FROM CONTINUING OPERATIONS:
Net loss	$ (271,068)	$ (44,480)
Loss from discontinued operations, net of tax	(1,327)	(66,080)
Net (loss) income from continuing operations	(269,741)	21,600
Adjustments to reconcile net loss from continuing operations to net cash flow from operating activities:
Depreciation and amortization	35,136	8,474
Deferred income taxes	15,055	5,557
Impairment of long-lived assets	176,307	0
Other non-cash affecting net income	2,097	140
Amortization of debt issuance costs	3,946	10
Stock-based compensation expense	2,636	3,770
Remeasurement of environmental liability	16,694	3,688
Gain on sale of assets	(1,780)	0
Gain on sale of digital assets	0	(275)
Changes in operating assets and liabilities:
Accounts receivable	(2,459)	153
Emissions and carbon offset credits	1,101	(439)
Prepaid expenses and other assets	1,218	(7,312)
Accounts payable	(48)	1,235
Accrued emissions expense	3,418	552
Accrued expenses	4,644	5,759
Income taxes payable and receivable	(3,142)	2,344
Other	433	0
Net cash flow (used for) provided by operating activities from continuing operations	(14,485)	45,256
INVESTING ACTIVITIES FROM CONTINUING OPERATIONS:
Purchases of and deposits for property and equipment	(132,950)	(163,571)
Proceeds from sale of assets	11,100	0
Proceeds from sale of short term investments	496	0
Net cash flow used for investing activities from continuing operations	(121,354)	(163,571)
FINANCING ACTIVITIES FROM CONTINUING OPERATIONS:
Proceeds from issuance of preferred stock, net of issuance costs	0	37,113
Proceeds from issuance of common stock, net of issuance costs	9,531	47,443
Proceeds from stock options exercised	14	1,000
Restricted stock unit awards settled in cash for taxes	(227)	(894)
Proceeds from debt, net of issuance costs	107,105	97,885
Principal payments on debt	(53,923)	(7,705)
Repayments of finance lease obligations	(363)	(777)
Net cash flow provided by financing activities from continuing operations	62,137	174,065
Discontinued Operations:
Net cash flow from operating activities of discontinued operations	6,320	(5,175)
Net cash flow from investing activities of discontinued operations	0	27,113
Net cash flow from financing activities of discontinued operations	0	(141)
Increase in cash and cash equivalents from discontinued operations	6,320	21,797
CHANGE IN CASH AND CASH EQUIVALENTS	(67,382)	77,547
CASH AND CASH EQUIVALENTS - beginning of year	82,599	5,052
CASH AND CASH EQUIVALENTS - end of year	$ 15,217	$ 82,599

RELATED PARTY TRANSACTIONS	12 Months Ended
RELATED PARTY TRANSACTIONS	Dec. 31, 2022
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS As of December 31, 2022, Atlas and its affiliates control 88.5% of the voting power of our outstanding capital stock. As a result, we are a "controlled company" within the meaning of Nasdaq’s corporate governance standards. Letters of Credit On March 19, 2021, the Company and Atlas and its affiliates, entered into an arrangement pursuant to which Greenidge agreed, upon request, to direct its bank to issue new letters of credit to replace all or a portion of the letters of credit provided by Atlas and certain of its affiliates, upon the consummation of a potential investment in, financing of, or sale of any assets or equity or debt securities of the Company, which results in net proceeds to the Company of at least $10 million. Atlas obtained a letter of credit from a financial institution in the amount of $5.0 million at December 31, 2022, payable to the NYSDEC. This letter of credit guarantees the current value of the Company’s landfill environmental trust liability under NYSDEC guidelines. Atlas also obtained a letter of credit from a financial institution in the amount of $3.6 million at December 31, 2022, payable to Empire Pipeline Incorporated ("Empire") in the event the Company should not make contracted payments for costs related to a pipeline interconnection project the Company has entered into with Empire. The Company paid $0.1 million for letter of credit fees to Atlas during the year ended December 31, 2021. For the year ended December 31, 2022, the Company paid these fees directly to the NYSDEC. Guarantee An affiliate of Atlas has guaranteed the payment obligation of Greenidge in favor of Emera Energy Services, Inc. ("Emera") under an Energy Management Agreement and an ISDA Master Agreement under which Greenidge may enter into various transactions involving the purchase and sale of natural gas, electricity and other commodities with Emera. This guaranty is limited to $1.0 million. Atlas had no exposure under the guarantee during the years ended December 31, 2022 and 2021. Other Affiliates of Atlas from time to time incur certain costs for the benefit of Greenidge, which are fully reimbursed by Greenidge. The amount of costs reimbursed by Greenidge during 2022 and 2021 was $0.2 million and less than $0.1 million, respectively. Spartanburg Facility In December 2021, the Company acquired an industrial site in Spartanburg, South Carolina, including a 750,000 square foot building and 175 acres of land (the "Property"). This agreement was entered into by one of the Company's subsidiaries and a portfolio company of private investment funds managed by Atlas. The Company has developed datacenter operations on the property, using existing electrical infrastructure at the location. . The purchase price of the Property is $15.0 million. The transaction closed in December 2021.

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 15,217	$ 82,599
Short-term investments	0	496
Digital assets	348	476
Accounts receivable	2,696	237
Prepaid expenses and other assets	6,266	7,484
Emissions and carbon offset credits	1,260	2,361
Income tax receivable	798	0
Current assets held for sale	6,473	6,949
Total current assets	33,058	100,602
LONG-TERM ASSETS:
Property and equipment, net	130,417	216,012
Deferred tax assets	0	15,058
Other long-term assets	292	1,653
Long-term assets held for sale	0	7,942
Total assets	163,767	341,267
CURRENT LIABILITIES:
Accounts payable	9,608	5,749
Accrued emissions expense	6,052	2,634
Accrued expenses	11,327	6,683
Short-term environmental liability	600	0
Income taxes payable	0	2,344
Long-term debt, current portion	67,161	19,577
Other short-term liabilities	0	736
Current liabilities held for sale	3,974	4,003
Total current liabilities	98,722	41,726
LONG-TERM LIABILITIES:
Long-term debt, net of current portion and deferred financing fees	84,585	75,251
Environmental liabilities	27,400	11,306
Other long-term liabilities	107	193
Long-term liabilities held for sale	0	368
Total liabilities	210,814	128,844
COMMITMENTS AND CONTINGENCIES (NOTE 11)
STOCKHOLDERS' EQUITY:
Preferred stock, par value $0.0001, 20,000,000 shares authorized, none outstanding	0	0
Common stock, par value $0.0001, 3,000,000,000 shares authorized, 46,252,779 and 40,865,336 shares issued and outstanding as of December 31, 2022 and 2021, respectively	5	4
Cumulative translation adjustment	(357)	0
Additional paid-in capital	293,769	281,815
Accumulated deficit	(340,464)	(69,396)
Total stockholders' equity	(47,047)	212,423
Total liabilities and stockholders' equity	$ 163,767	$ 341,267

Debt - Minimum Future Principal Payments on Debt (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Debt Disclosure [Abstract]
2023	$ 68,273
2024	17,020
2025	0
2026	72,200
2027	0
Total	$ 157,493

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)		1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended	12 Months Ended
	Jan. 30, 2023 USD ($)	Jan. 31, 2021 shares	Jan. 01, 2023 USD ($)	Dec. 31, 2022 USD ($) bitcoin	Mar. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) bitcoin segment	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($) bitcoin	Mar. 31, 2024 USD ($)	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Decrease in price of bitcoin								(0.40)
Increase in price of natural gas								0.83
Cash and cash equivalents				$ 15,217,000				$ 15,217,000		$ 82,599,000
Bitcoin holdings at fair value				500,000				500,000
Accounts payable and accrued expenses				20,900,000				20,900,000
Prinipal and interest payable, current				80,200,000				80,200,000
Debt outstanding				157,493,000				157,493,000
Proceeds from issuance of common stock, net of issuance costs								9,531,000		47,443,000
Proceeds from sale of assets								$ 11,100,000		0
Number of reportable segments \| segment								1
Number of operating segments \| segment								1
Short-term investments				$ 0				$ 0		496,000
Impairment of digital assets								$ 100,000		$ 0
Number of digital assets (in bitcoin) \| bitcoin				31.4				31.4		29.0
Accounts receivable				$ 2,696,000				$ 2,696,000		$ 237,000
Percentage of annual emission expense and credit in the following year												50.00%
Impairment of long-lived assets								$ 176,307,000		$ 0
Share based compensation arrangement, expiration period								10 years
Vesting period								3 years
Expected dividend yield								0.00%		0.00%
Power and capacity
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Revenue, payment period (within)								7 days
Cryptocurrency datacenter
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Accounts receivable				0				$ 0
Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cash and cash equivalents											$ 10,000,000
At The Market Issuance Sales Agreement
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net proceeds received				2,100,000
Amended Equity Purchase Agreements
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Proceeds from issuance of common stock, net of issuance costs						$ 8,900,000			$ 59,800,000
Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Proceeds from sale of assets							$ 11,700,000
Subsequent Event \| At The Market Issuance Sales Agreement
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net proceeds received			$ 8,200,000		$ 10,200,000
Master Equipment Finance Agreement \| Secured Debt
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Debt outstanding				$ 75,800,000				75,800,000
Master Equipment Finance Agreement \| Secured Debt \| Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Debt outstanding	$ 17,300,000
Annual interest payments	2,500,000
Master Equipment Finance Agreement, Post-Closing Covenant \| Secured Debt \| Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Annual interest payments	1,100,000
Refinanced 2021 and 2022 Master Equipment Finance Agreement \| Secured Debt \| Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Principal and interest amount due	$ 62,700,000
Cost of Sales
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Emissions expense								$ 4,500,000		$ 2,600,000
GGHI Class B Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares issued in exchange for acquisition of ownership interests \| shares		28,000,000

DISCONTINUED OPERATIONS (Tables)

12 Months Ended

Dec. 31, 2022

Discontinued Operations and Disposal Groups [Abstract]

Disposal Groups, Including Discontinued Operations

Major classes of assets and liabilities consist of the following:


	As of December 31,
$ in thousands	2022		2021
Assets:
Accounts receivable	$	3,996	$	5,287
Prepaid expenses and other current assets	1,253		1,662
Current assets held for sale	5,249		6,949

Property and equipment	743		1,079
Intangible assets, net	—		3,537
Goodwill	—		3,062
Other assets	481		264

Long-term assets held for sale	1,224		7,942
Assets held for sale	6,473		14,891

Liabilities:
Accounts payable	191		174
Accrued expenses	3,351		3,692
Income taxes payable	—		137
Current liabilities held for sale	3,542		4,003

Other long-term liabilities	432		368
Long-term liabilities held for sale	432		368
Liabilities held for sale	3,974		4,371

Financial results from discontinued operations consist of the following:


	For the Year Ended December 31,
$ in thousands	2022		2021
Revenue	$	31,464	$	9,952
Cost of revenue - services and other (exclusive of depreciation and amortization)	(14,791)		(5,430)
Depreciation and amortization	(1,298)		(381)
Selling, general and administrative	(9,852)		(3,352)
Merger and other costs	(1,343)		(32,087)
Goodwill and intangibles asset impairment charge	(5,672)		(42,307)
Other income, net	353		32
Pretax loss of discontinued operations	(1,139)		(73,573)
Income tax provision (benefit)	188		(7,493)
Loss from discontinued operations, net of tax	$	(1,327)	$	(66,080)

Changes in the carrying amount of goodwill related to the Company's discontinued operations were as follows:


$ in thousands
Balance December 31, 2020	$	—
Support acquisition (Note 3)	45,369
Impairment charge – Fourth Quarter 2021 (see below)	(42,307)
Balance December 31, 2021	3,062
Impairment charge – Fourth Quarter 2022 (see below)	(3,062)
Balance December 31, 2022	$	—

Changes in the carrying amount of intangible assets related to the Company's discontinued operations were as follows:


$ in thousands	Customer Relationships		Tradename		Total
Balance December 31, 2020	$	—	$	—	$	—
Support acquisition (Note 3)	3,320		490		3,810
Amortization expense	(244)		(29)		(273)
Balance December 31, 2021	3,076		461		3,537
Amortization expense	(830)		(97)		(927)
Impairment charge – Fourth Quarter 2022 (see below)	(2,246)		(364)		(2,610)
Balance December 31, 2022	$	—	$	—	$	—

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

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+ Details

SUPPLEMENTAL BALANCE SHEET AND CASH FLOW INFORMATION - Noncash Investing and Financing Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Shares issued to Support.com shareholders upon Merger	$ 0	$ 93,885
Stock issued to purchase miners	0	991
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock	0	72,048
Issuance of shares for investor fee associated with successful completion of Merger	0	17,826
Issuance of warrants to advisor in connection with completion of Merger	0	8,779
Property and equipment purchases in accounts payable	$ 6,676	$ 2,769

INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Effective income tax rate as a percentage	(5.90%)	26.80%
Deferred tax assets, valuation allowance	$ 85,202	$ 6,993
U.S.
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	230,800
Net operating loss carryforwards, subject to expiration	1,200
U.S. \| Support Com
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards		$ 60,800
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 169,300

INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
(Benefit) provision at federal statutory rate	$ (53,495)	$ 6,195
State income taxes, net of federal tax benefits	2,553	2,124
Change in valuation allowance	65,395	0
Other, net	549	(418)
Total provision for income taxes	$ 15,002	$ 7,901

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Support Com	Common Class B	Preferred Stock	Common Stock	Common Stock Support Com	Common Stock Common Class B	Additional Paid - In Capital	Additional Paid - In Capital Support Com	Additional Paid - In Capital Common Class B	Total Members' Capital	Total Members' Capital Common Class B	Common Units	Common Units Common Class B	Preferred Units	Preferred Units Common Class B	Senior Priority Units	Senior Priority Units Common Class B	Cumulative Translation Adjustment	Accumulated Deficit
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2020				0	0
Stockholders' equity, beginning balance at Dec. 31, 2020	$ 44,360			$ 0	$ 0			$ 0											$ 0	$ (24,916)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock (Note 7) (in shares)							26,800,300									(39,228)		(10,000)
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock (Note 7)			$ 2,772				$ 3			$ 72,045		$ (69,276)				$ (39,074)		$ (30,202)
Contribution of GGH Common Units for Greenidge class B common stock (Note 7) (in shares)							1,199,700							(750)
Proceeds from sale of preferred stock, net of stock issuance costs/Shares issued to Support.com shareholders upon Merger, net of issuance costs (in shares)				1,620,000		2,960,731
Proceeds from sale of preferred stock, net of stock issuance costs/Shares issued to Support.com shareholders upon Merger, net of issuance costs	37,113	$ 91,588		$ 1				37,112	$ 91,588
Stock-based compensation expense	3,770							3,770
Proceeds from stock options exercised (in shares)					160,000
Proceeds from stock options exercised	1,000							1,000
Stock issued to purchase miners (in shares)					160,000
Stock issued to purchase miners	991							991
Issuance of shares for investor fee associated with successful completion of Merger (Note 7) (in shares)					562,174
Issuance of shares for investor fee associated with successful completion of Merger (Note 7)	17,826							17,826
Issuance of warrants to advisor in connection with completion of Merger (Note 7)	8,779							8,779
Conversion of preferred stock (Note 8) (in shares)				(1,620,000)	6,480,000
Conversion of preferred stock	0			$ (1)	$ 1
Shares issued upon exercise of warrants (in shares)					344,800
Shares issued upon exercise of warrants	2,155							2,155
Issuance of shares, net of issuance costs (in shares)					2,132,500
Issuance of shares, net of issuance costs	47,443							47,443
Restricted shares award issuance, net of withholdings (in shares)					65,131
Restricted shares award issuance, net of withholdings	(894)							(894)
Net loss	(44,480)																			(44,480)
Stockholders' equity ending balance (in shares) at Dec. 31, 2021				0	40,865,336
Stockholders equity, ending balance at Dec. 31, 2021	212,423			$ 0	$ 4			281,815											0	(69,396)
Members' capital, common units, beginning balance (in shares) at Dec. 31, 2020													750
Members' capital, beginning balance at Dec. 31, 2020											$ 69,276		$ 0		$ 39,074		$ 30,202
Members' capital, preferred units, beginning balance (in shares) at Dec. 31, 2020															39,228
Members' capital, senior priority units, beginning balance (in shares) at Dec. 31, 2020																	10,000
Increase (Decrease) In Limited Liability Company (LLC) Members' Equity [Roll Forward]
Contribution of GGH Preferred Units, GGH Senior Priority Units, and notes payable to related party for GGHI Common Stock (in shares)							26,800,300									(39,228)		(10,000)
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock (Note 7)			$ 2,772				$ 3			$ 72,045		$ (69,276)				$ (39,074)		$ (30,202)
Members' capital, common units, ending balance (in shares) at Dec. 31, 2021													0
Members' capital, ending balance at Dec. 31, 2021											0		$ 0		$ 0		$ 0
Members' capital, preferred units, ending balance (in shares) at Dec. 31, 2021															0
Members' capital, senior priority units, ending balance (in shares) at Dec. 31, 2021																	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	2,636							2,636
Proceeds from stock options exercised (in shares)					2,296
Proceeds from stock options exercised	14							14
Stock issued to purchase miners	0
Issuance of shares for investor fee associated with successful completion of Merger (Note 7)	0
Issuance of warrants to advisor in connection with completion of Merger (Note 7)	0
Issuance of shares, net of issuance costs (in shares)					4,895,765
Issuance of shares, net of issuance costs	9,532				$ 1			9,531
Restricted shares award issuance, net of withholdings (in shares)					489,382
Restricted shares award issuance, net of withholdings	(227)							(227)
Foreign currency translation adjustment	(357)																		(357)
Net loss	(271,068)																			(271,068)
Stockholders' equity ending balance (in shares) at Dec. 31, 2022				0	46,252,779
Stockholders equity, ending balance at Dec. 31, 2022	$ (47,047)			$ 0	$ 5			$ 293,769											$ (357)	$ (340,464)
Members' capital, common units, ending balance (in shares) at Dec. 31, 2022													0
Members' capital, ending balance at Dec. 31, 2022											$ 0		$ 0		$ 0		$ 0
Members' capital, preferred units, ending balance (in shares) at Dec. 31, 2022															0
Members' capital, senior priority units, ending balance (in shares) at Dec. 31, 2022																	0

EQUITY BASED COMPENSATION - Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Weighted Average Exercise Price Per Share
Weighted average exercise price per share, granted (in dollars per share)	$ 1.32	$ 6.07
Share-based Payment Arrangement, Option
Options
Outstanding, beginning balance (in shares)	583,080
Granted (in shares)	3,076,842
Exercised (in shares)	(2,296)
Forfeited (in shares)	(11,479)
Expired (in shares)	(4,297)
Outstanding, ending balance (in shares)	3,641,850	583,080
Weighted Average Exercise Price Per Share
Weighted average exercise price per share, beginning balance (in dollars per share)	$ 6.01
Weighted average exercise price per share, granted (in dollars per share)	1.32
Weighted average exercise price per share, exercised (in dollars per share)	6.25
Weighted average exercise price per share, forfeited (in dollars per share)	6.68
Weighted average exercise price per share, expired (in dollars per share)	6.83
Weighted average exercise price per share, ending balance (in dollars per share)	$ 2.05	$ 6.01
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Exercisable as of end of period (in shares)	444,300
Exercisable, weighted average exercise price per share as of end of period (in dollars per share)	$ 5.88
Outstanding, weighted average remaining contractual life	9 years 6 months
Exercisable, weighted average remaining contractual life as of end of period	8 years 1 month 6 days
Outstanding, aggregate intrinsic value as of end of period	$ 1,056
Exercisable, aggregate intrinsic value, as of end of period	$ 8,386

DISCONTINUED OPERATIONS - Changes in Carrying Amount of Intangible Assets (Details) - Discontinued Operations, Held-for-sale - Support Com - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disposal Group, Including Discontinued Operation, Intangible Assets [Roll Forward]
Intangible assets, beginning balance	$ 3,537	$ 0
Support acquisition		3,810
Amortization expense	(927)	(273)
Impairment charge	(2,610)
Intangible assets, ending balance	0	3,537
Customer relationships
Disposal Group, Including Discontinued Operation, Intangible Assets [Roll Forward]
Intangible assets, beginning balance	3,076	0
Support acquisition		3,320
Amortization expense	(830)	(244)
Impairment charge	(2,246)
Intangible assets, ending balance	0	3,076
Tradename
Disposal Group, Including Discontinued Operation, Intangible Assets [Roll Forward]
Intangible assets, beginning balance	461	0
Support acquisition		490
Amortization expense	(97)	(29)
Impairment charge	(364)
Intangible assets, ending balance	$ 0	$ 461

COMMITMENTS AND CONTINGENCIES	12 Months Ended
COMMITMENTS AND CONTINGENCIES	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal Matters From time to time, the Company may be involved in various lawsuits and legal proceedings that arise in the ordinary course of business. However, litigation is subject to inherent uncertainties, and an adverse result in such matters may arise and harm the Company's business. The Company is currently not aware of any other such legal proceedings or claims that it believes will have a material adverse effect on its business, financial condition or operating results other than described below. On January 13, 2023, Greenidge and Jeffrey Kirt (the former CEO of Greenidge) (collectively, "Defendants") were served with a lawsuit filed by certain parties in the United States District Court for the Southern District of New York asserting violations of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Securities and Exchange Commission Rule 10b-5. The suit alleged that the proxy statement for special meeting of stockholders of Support.com, Inc. ("Support") filed on August 10, 2021 in connection with Greenidge’s acquisition of Support misrepresented the manner in which consideration would be paid to holders of Support common stock. As of December 31, 2022, the Company had recorded a liability of $500,000 which is included in Accrued expenses of the consolidated balance sheet and a receivable for expected insurance recoveries of $250,000 included in prepaid expenses and other assets on the consolidated balance sheet. Greenidge settled this matter on February 21, 2023 for $500,000, of which $250,000 was paid by the Company's insurance agent. Environmental Liabilities The Company has a coal combustion residual ("CCR") liability associated with the closure of a coal ash pond located on the Company's property in the Town of Torrey, New York. In accordance with ASC 410-30, the Company has a liability of $17.5 million and $2.7 million as of December 31, 2022 and 2021, respectively, which includes a charge of $14.8 million during 2022 as a result of an update to the cost estimates as part of the ongoing evaluation of the site. CCRs are subject to federal and state requirements. Estimates are based on various assumptions including, but not limited to, closure and post-closure cost estimates, timing of expenditures, escalation factors, and requirements of granted permits. Additional adjustments to the environment liability may occur periodically due to potential changes in remediation requirements regarding coal combustion residuals which may lead to material changes in estimates and assumptions. The Company owns and operates a fully permitted landfill that also acts as a leachate treatment facility. In accordance with ASC 410-30, Environmental Obligations ("ASC 410-30"), the Company has recorded an environmental liability of $10.5 million and $8.6 million as of December 31, 2022 and 2021, respectively, which includes a charge of $1.9 million in 2022 related to an increase in cost estimate. As required by NYSDEC, companies with landfills are required to fund a trust to cover closure costs and expenses after the landfill has stopped operating or, in lieu of a trust, may negotiate to maintain a letter of credit guaranteeing the payment of the liability. Estimates are based on various assumptions including, but not limited to, closure and post-closure cost estimates, timing of expenditures, escalation factors, and requirements of granted permits. Additional adjustments to the environment liability may occur periodically due to potential changes in estimates and assumptions. The liability has been determined based on estimated costs to remediate as well as post-closure costs which are assumed over an approximate 30-year period and assumes an annual inflation rate of 3.0%. Estimates are based on various assumptions including, but not limited to, closure and post-closure cost estimates, timing of expenditures, escalation factors, and requirements of granted permits. Additional adjustments to the environment liability may occur periodically due to potential changes in estimates and assumptions. Other Matters Support.com has received and may in the future receive additional requests for information, including subpoenas, from other governmental agencies relating to the subject matter of a Consent Order and Civil Investigative Demands. The Company intends to cooperate with these information requests and is not aware of any other legal proceedings against the Company by governmental authorities at this time. Commitments The Company entered into a contract with Empire Pipeline Incorporated in September 2020 which provides for the transportation to its pipeline of 15,000 dekatherms of natural gas per day, approximately $0.2 million per month. The contract ends in September 2030 and may be terminated by either party with 12 months' notice after the initial 10-year period.

MERGER WITH SUPPORT.COM - Narrative (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Sep. 14, 2021 USD ($) day $ / shares	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Sep. 13, 2021 $ / shares
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) \| $ / shares		$ 0.0001	$ 0.0001
Operating loss		$ 233,163	$ (32,784)
Transaction costs			36,700
Transaction costs after tax			27,700
Class A Common Stock
Business Acquisition [Line Items]
Exchange ratio	0.115
Common stock, par value (in dollars per share) \| $ / shares	$ 0.0001			$ 0.0001
Consideration paid	$ 93,900
Greenidge Generation Holdings Inc
Business Acquisition [Line Items]
Exchange ratio	0.115
Common stock, par value (in dollars per share) \| $ / shares	$ 31.71
Consideration paid	$ 93,885
Trading days \| day	10
Revenue			10,000
Operating loss			73,600
Goodwill impairment charge			42,300
Pro forma net loss			$ 50,500

EQUITY BASED COMPENSATION - Unvested Restricted Common Stock Unit Awards Activity (Details) - Restricted Stock Units (RSUs)	12 Months Ended
	Dec. 31, 2022 $ / shares shares
RSUs
Unvested, beginning balance (in shares) \| shares	516,987
Granted (in shares) \| shares	335,870
Vested (in shares) \| shares	(605,571)
Unvested, ending balance (in shares) \| shares	247,286
Weighted Average Grant Date Fair Value
Unvested, beginning balance (in dollars per share) \| $ / shares	$ 6.80
Granted (in dollars per share) \| $ / shares	2.21
Vested (in dollars per share) \| $ / shares	4.22
Unvested, ending balance (in dollars per share) \| $ / shares	$ 6.89

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Support Com
Payment of stock issuance costs	$ 2,297
Preferred Stock
Payment of stock issuance costs	3,387
Common Stock
Payment of stock issuance costs	$ 3,510

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, authorized (in shares)	20,000,000	20,000,000
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	3,000,000,000	3,000,000,000
Common stock, issued (in shares)	46,252,779	40,865,336
Common stock, outstanding (in shares)	46,252,779	40,865,336

ORGANIZATION AND DESCRIPTION OF BUSINESS	12 Months Ended
ORGANIZATION AND DESCRIPTION OF BUSINESS	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND DESCRIPTION OF BUSINESS	ORGANIZATION AND DESCRIPTION OF BUSINESS Greenidge Generation Holdings Inc. ("Greenidge") and its subsidiaries (collectively, the "Company") owns and operates a vertically integrated cryptocurrency datacenter and power generation company. The Company owns and operates facilities at two locations: the Town of Torrey, New York and Spartanburg, South Carolina. The Company’s cryptocurrency datacenter operations generate revenue in the form of bitcoin by earning bitcoin as rewards and transaction fees for supporting the global bitcoin network with application-specific integrated circuit computers ("ASICs" or "miners") owned or leased by the Company. The earned bitcoin are then exchanged for U.S. dollars. Additionally, the Company generates revenues in U.S. dollars to a lesser extent from third parties for hosting and maintaining their ASICs; however, such contracts expired in 2021. The Company also owns and operates a 106MW power facility that is connected to the New York Independent System Operator ("NYISO") power grid. The Company sells electricity to the NYISO at all times when its power plant is running and increases or decreases the amount of electricity sold based on prevailing prices in the wholesale electricity market and demand for electricity. Merger with Support.com, Inc. On September 14, 2021, GGH Merger Sub, Inc. ("Merger Sub"), a wholly owned subsidiary of Greenidge, merged with and into Support.com, Inc. ("Support.com"), with Support.com continuing as the surviving corporation (the "Merger") and a wholly owned subsidiary of Greenidge, pursuant to the Agreement and Plan of Merger, dated March 19, 2021 (the "Merger Agreement"), among Greenidge, Support.com and Merger Sub. The Merger combined the respective businesses of Greenidge and Support.com through an all-stock transaction was accounted for using the acquisition method of accounting in accordance with the provisions of Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 805, Business Combinations, with Greenidge being deemed the acquiring company for accounting purposes, see Note 3 "Merger with Support.com" for additional information. Prior to the Merger, Greenidge's class A common stock was registered pursuant to the Securities Exchange Act of 1934, as amended (the "Exchange Act") and, upon completion of the Merger on September 15, 2021, began trading on Nasdaq Global Select Market under the ticker symbol "GREE". Concurrently, Support.com deregistered its shares pursuant to the Exchange Act. Support.com provides solutions and technical programs to customers delivered by home-based employees. Support.com’s homesourcing model, which enables outsourced work to be delivered by people working from home, has been specifically designed for remote work, with attention to security, recruiting, training, delivery, and employee engagement. Since the consummation of the Merger, the Support.com business has operated as a wholly-owned subsidiary of Greenidge. The contract with the Support Services segment's largest customer expired on December 31, 2022 and was not renewed. As a result, the Company has classified the Support.com business as held for sale and discontinued operations in these consolidated financial statements as a result of management and the Board of Directors making a decision to pursue alternatives for the Support.com business and to strictly focus on its cryptocurrency datacenter and power generation operations. See Note 4, "Discontinued Operations" for additional information.

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2022
Audit Information [Abstract]
Auditor Firm ID	32
Auditor Name	Armanino LLP
Auditor Location	Dallas, Texas

SUBSEQUENT EVENTS	12 Months Ended
SUBSEQUENT EVENTS	Dec. 31, 2022
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS Subsequent events have been evaluated through March 31, 2023, the date at which the consolidated financial statements were available to be issued, and the Company has concluded that no such events or transactions took place that would require disclosure herein except as stated below. NYDIG Agreements On January 30, 2023, the Company entered into a Debt Settlement Agreement with NYDIG in order to refinance and replace certain outstanding indebtedness under certain MEFAs. The $75.8 million in debt previously outstanding under the MEFAs was reduced by $58.5 million pursuant to the Debt Settlement Agreement and the remaining $17.3 million outstanding under the MEFAs was refinanced. See Note 6, "Debt" under section Senior Unsecured Notes for further details. As part of the Refinancing, the Company entered into (i) a Membership Interest and Asset Purchase Agreement dated January 30, 2023 (the "Purchase Agreement"), pursuant to which wholly-owned subsidiaries of Greenidge (the "Sellers") sold to NYDIG and certain of its subsidiaries ("Buyers"), and Buyers purchased (x) certain subsidiaries that own bitcoin mining equipment and (y) credits and coupons that had accrued to the Sellers upon the purchase of the bitcoin mining equipment, in exchange for a reduction in indebtedness under the MEFAs and (ii) Hosting Agreements dated January 30, 2023 (the "Hosting Agreements"), pursuant to which, among other things, Greenidge South Carolina LLC (the "Host") shall provide hosting services to certain NYDIG affiliates (the "Clients") in connection with the mining of bitcoin (or other digital assets recorded on a decentralized distributed ledger), and the Clients shall pay the Host for such hosting services. Under the Hosting Agreements, the Host agreed to host, power and provide technical support services, and other related services, to the Clients’ mining equipment (the "Services") at data centers operated by the Host for a period of five years, unless earlier terminated in accordance with the terms of the Hosting Agreements. The Hosting Agreements require the Clients to pay the Host a hosting fee that covers the cost of power and direct costs associated with management of the mining facilities, as well as a gross profit-sharing arrangement. The Clients are also required to pay a security deposit to the Host prior to the Host providing hosting services. Under the Hosting Agreements, the Clients submitted Hosting Agreement Orders ("Orders") to the Host detailing the terms of the hosting services to be provided and the amounts to be paid to the Host for providing the hosting services. The initial Orders entered into have a term of five years, but may be terminated earlier by a party (i) upon default by the other party, which default is not cured within 10 days of notice thereof, (ii) any representation or warranty made by the other party in connection with such Hosting Agreement proves to have been false or misleading in any material respect and the conditions causing such representation or warranty to be false or misleading are not corrected within 10 days following notice thereof, (iii) the other party suffers certain insolvency events or (iv) the Host commits a service level commitment default (as defined in the Hosting Agreements). The Initial Orders under the Hosting Agreements cover all of Greenidge’s current mining capacity at the New York and South Carolina facilities, and future Orders may cover capacity at a potential third site pursuant to satisfaction of certain post-closing covenants. On January 30, 2023, in connection with the Refinancing, Greenidge and NYDIG executed a board observation rights letter (the "Board Rights Letter"), pursuant to which Greenidge agreed to grant NYDIG certain board observation rights, in a non-voting observational capacity, as more fully detailed therein. B. Riley Amendment On January 30, 2023, Greenidge entered into an amendment with B. Riley to modify the payment dates and principal and interest payment amounts under the Promissory Note, requiring no principal and interest payments until June 2023 and monthly payments thereafter through November 20, 2023. Under the B. Riley Amendment, Greenidge is required to make mandatory monthly debt repayments under the Promissory Note of 15% of the net proceeds of sales of equity, including sales under the ATM Agreement and the equity purchase agreement. Through March 30, 2023, the Company had repaid B. Riley $2.8 million through proceeds from sales under the ATM Agreement. See Note 6, "Debt" under section Secured Promissory Note for further details.

SUPPLEMENTAL BALANCE SHEET AND CASH FLOW INFORMATION - Additional Prepaid Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid insurance	$ 3,822	$ 7,013
Electric deposits	1,400	0
Other prepaid expenses	1,044	471
Prepaid expenses and other assets	$ 6,266	$ 7,484

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Basis of Presentation and Principles of Consolidation

The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP").

The consolidated financial statements include the accounts of Greenidge and its subsidiaries. All significant intercompany accounts and transactions have been eliminated.

Going Concern

•issuances of equity, including but not limited to issuances under the Equity Purchase Agreement and/or the ATM Agreement.

•a sale of the Company's excess real estate at its South Carolina facility that is not used in its datacenter operations.

Use of estimates

Segment Reporting

Discontinued Operations

Discontinued OperationsThe Company deems it appropriate to classify a component as a discontinued operation if the related disposal group meets all the following criteria: 1) The disposal group is a component of the Company; 2) The component meets the held-for-sale criteria; and 3) The disposal of the component represents a strategic shift that has a major effect on the Company's operations and financial results.

Cash, Cash Equivalents, and Short Term Investments

Cash, Cash Equivalents, and Short-Term Investments

Digital Assets

Accounts Receivable

Accounts ReceivableWe provide credit in the normal course of business to our power customer, the NYISO. The NYISO makes payments, depending on the type of revenue, within seven days of usage or seven days of month end.

Emissions Expense and Credits

Property and Equipment, net


Asset Class			Estimated Useful Lives
Plant infrastructure			10 years
Miners			3 years
Miner facility infrastructure			10 years

Equipment			5 years
Software			3 years

Valuation of Long-Lived Assets

Valuation of Long-Lived AssetsThe Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be fully recoverable. To determine recoverability of a long-lived asset, management evaluates whether the estimated future undiscounted net cash flows, based on prevailing market conditions, from the asset are less than its carrying amount. If impairment is indicated, the long-lived asset is written down to fair value.

Environmental Liability

Environmental LiabilityEnvironmental liabilities are recognized in accordance with ASC 410-30, Asset Retirement and Environmental Obligations when the costs are probable and estimable. As of December 31, 2022, we have recognized environmental liabilities for a coal ash pond and landfill which were inherited due to the legacy coal operations at the Company's property in the Town of Torrey, New York. The Company determines the estimate by developing key assumptions to determine the expected cost of remediation. Estimates are based on various assumptions that are sensitive to changes including, but not limited to, closure and post-closure cost estimates, timing of expenditures, escalation factors, and requirements of granted permits.

Revenue Recognition

•Step 1: Identify the contract, or contracts, with the customer;

•Step 2: Identify the performance obligations in the contract;

•Step 3: Determine the transaction price;

•Step 4: Allocate the transaction price to the performance obligations in the contract; and

•Step 5: Recognize revenue when, or as, the Company satisfies a performance obligation.

If a good or service is not distinct, the good or service is combined with other promised goods or services until a bundle of goods or services is identified that is distinct.

•Variable consideration;

•Constraining estimates of variable consideration;

•The existence of a significant financing component in the contract;

•Noncash consideration; and

•Consideration payable to a customer.

Cryptocurrency Datacenter Revenue

Fair value of the cryptocurrency award received is determined using the quoted price on Greenidge’s primary exchange of the related cryptocurrency at the time of receipt.

Power and capacity revenue

Cryptocurrency Datacenter Cost of Revenue

Power and Capacity Cost of Revenue

Selling, General, and Administrative Expenses

Selling, general and administrative expenses consist primarily of administrative payroll and benefits, business development costs, professional fees, and insurance.

Stock-Based Compensation

Expected Volatility – The Company computes stock price volatility over expected terms based on historical volatility of the Company’s common stock .

Risk-Free Interest Rate– The Company bases the risk-free interest rate on the implied yield available on U.S. Treasury zero-coupon issues with an equivalent remaining term.

Income Taxes

Income (Loss) Per Share

Fair Value Measurements

•Level 1 – inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities.

•Level 3 – inputs to valuation models are unobservable and/or reflect the Company’s market assumptions.

Reclassifications

Recent Accounting Pronouncements Not Yet Adopted

Recent Accounting Pronouncements, Adopted

CONCENTRATIONS (Details) - Sales Revenue Net	12 Months Ended
CONCENTRATIONS (Details) - Sales Revenue Net	Dec. 31, 2022	Dec. 31, 2021
One Major Customer \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	18.00%	10.00%
One Major Customer \| Supplier Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	62.00%	60.00%
Operator Customer One \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	70.00%	70.00%

EQUITY BASED COMPENSATION

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

EQUITY BASED COMPENSATION

Equity Incentive Plans

In February 2021, the Company adopted the Greenidge Generation Holdings Inc 2021 equity incentive plan (the "2021 Equity Plan") and reserved 3,831,112 shares of class A common stock for issuance. The maximum number of shares of class A common stock that may be issued pursuant to awards granted under the 2021 Plan is 3,831,112 shares (after taking into account the 4-to-1 forward stock split that occurred on March 16, 2021). At December 31, 2022, 1,168,228 shares of class A common stock remain available for issuance under the 2021 Plan. Awards that may be granted include: (a) incentive stock options, (b) non-qualified stock options, (c) stock appreciation rights, (d) restricted awards (which include restricted stock and restricted stock units), (e) performance share awards, and (f) performance compensation awards.

In October 2022, the Company registered 3,076,842 Class A common stock, that were reserved for issuance upon the vesting and exercise of non-qualified stock options granted to the Company's Chief Executive Officer and Chief Strategy Officer of the Company with respect to their appointments (the "Inducement Grants"). The Inducements Grants were granted outside the Company’s long-term equity incentive plan as an inducement material to the Chief Executive Officer and Chief Strategy Officer entering into employment with the Company.

Restricted Common Stock Unit Awards

During the year ended December 31, 2022, the Company awarded 335,870 restricted common stock units ("RSUs") under the 2021 Equity Plan to employees and to the former Chief Executive Officer. 280,000 RSUs awarded to the former Chief Executive Officer vested over a twelve week period during 2022, while the remainder of RSUs granted are generally eligible to vest over a three-year period at a rate of 33.3% per year and are subject to forfeiture restrictions which lapse over time.

The Company’s unvested restricted common stock unit awards activity for the year ended December 31, 2022 is summarized below:


	RSUs	Weighted Average Grant Date Fair Value
Unvested at December 31, 2021	516,987	$	6.80
Granted	335,870	$	2.21
Vested	(605,571)	$	4.22
Unvested at December 31, 2022	247,286	$	6.89

The value of RSU grants is measured based on their fair market value on the date of grant and amortized over their requisite service periods. During the years ended December 31, 2022 and 2021, the fair market value of the awards granted totaled $0.7 million and $3.9 million as of, respectively. There was $1.1 million of total unrecognized compensation cost related to unvested restricted stock rights as of December 31, 2022, which is expected to be recognized over a remaining weighted-average vesting period of approximately 1.45 years.

Common Stock Options

During the year ended December 31, 2022, the Company awarded 3,076,842 options that vest over a three-year period at a rate of 33.3% per year and are subject to forfeiture restrictions which lapse over time. These were issued from the Inducement Grants registered in October 2022. Options granted to officers and employees expire ten years after the date of grant.

The Company’s stock options activity for the year ended December 31, 2022 is summarized below:


	Options	Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2021	583,080	$	6.01	-
Granted	3,076,842	$	1.32
Exercised	(2,296)	$	6.25
Forfeited	(11,479)	$	6.68
Expired	(4,297)	$	6.83
Outstanding at December 31, 2022	3,641,850	$	2.05	9.5	$	1,056
Exercisable as of December 31, 2022	444,300	$	5.88	8.1	$	8,386

The value of common stock option grants is measured based on their fair market value on the date of grant and amortized over their requisite service periods. During the year ended December 31, 2022 and 2021, the fair market value of the awards granted totaled $3.1 million and $1.2 million, respectively. As of December 31, 2022, there was $3.0 million of total unrecognized compensation cost related to unvested options, which is expected to be recognized over a remaining weighted-average vesting period of approximately 2.7 years.

We determine the fair value of each grant using the Black-Scholes option pricing model. The weighted average assumptions relating to the valuation of stock options granted for the year ended December 31, 2022 and 2021 were as follows:


	2022			2021
Weighted average exercise price of options granted	$	1.32		$	6.07
Expected volatility	89		%	35		%
Expected term (years)	6.0			4.0
Risk-free interest rate	4.1		%	0.5		%
Expected dividend yield	0.0		%	0.0		%

Stock-based Compensation

The Company recognized stock-based compensation expense of $2.6 million and $3.8 million during the years ended December 31, 2022 and 2021, respectively. Stock-based compensation expense is included in selling, general and administrative expenses in the accompanying consolidated statements of operations.

DISCONTINUED OPERATIONS - Changes in Carrying Amount of Goodwill (Details) - Support Com - Discontinued Operations, Held-for-sale - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disposal Group, Including Discontinued Operation, Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,062	$ 0
Support acquisition		45,369
Impairment charge	(3,062)	(42,307)
Goodwill, ending balance	$ 0	$ 3,062

EARNINGS PER SHARE - Basic Earnings and Diluted per Share of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Numerator
Net (loss) income from continuing operations	$ (269,741)	$ 21,600
Less: Net income attributable to the member units before the reorganization	0	(648)
Net (loss) income from continuing operations attributable to Greenidge	(269,741)	20,952
Loss from discontinued operations, net of tax	(1,327)	(66,080)
Net loss, basic	(271,068)	(45,128)
Net loss, diluted	$ (271,068)	$ (45,128)
Denominator
Basic weighted average shares outstanding (in shares)	42,373,000	31,995,000
Dilutive effect of equity awards (in shares)	0	592,000
Dilutive effect of convertible preferred stock (in shares)	0	4,048,000
Diluted weighted average shares outstanding (in shares)	42,373,000	36,635,000
(Loss) earnings per basic share:
(Loss) earnings per basic share from continuing operations (in dollars per share)	$ (6.37)	$ 0.65
Loss per basic share from discontinued operations (in dollars per share)	(0.03)	(2.06)
(Loss) earnings per basic share (in dollars per share)	(6.40)	(1.41)
(Loss) earnings per diluted share:
(Loss) earnings per diluted share from continuing operations (in dollars per share)	(6.37)	0.57
Loss per diluted share from discontinued operations (in dollars per share)	(0.03)	(1.80)
(Loss) earnings per diluted share (in dollars per share)	$ (6.40)	$ (1.23)

EQUITY BASED COMPENSATION - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Oct. 31, 2022 shares	Feb. 28, 2021 shares
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Vesting period	3 years
Share based compensation arrangement, expiration period	10 years
Stock-based compensation expense \| $	$ 2.6	$ 3.8
Class A Common Stock
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Common stock reserved for issuance (in shares)	1,168,228
Conversion ratio	4
Number of shares registered			3,076,842
Restricted Stock Units (RSUs)
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Shares based payment arrangement, equity instrument other than option, granted in period (in shares)	335,870
Shares based payment arrangement, equity instrument other than option, vested in period (in shares)	605,571
Fair market value of the awards granted \| $	$ 0.7	3.9
Unrecognized compensation cost \| $	$ 1.1
Weighted average vesting period	1 year 5 months 12 days
Share-based Payment Arrangement, Option
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Granted (in shares)	3,076,842
Fair market value of award, options granted \| $	$ 3.1	$ 1.2
Unrecognized compensation cost \| $	$ 3.0
Weighted average vesting period	2 years 8 months 12 days
2021 Equity Plan
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Common stock reserved for issuance (in shares)				3,831,112
2021 Equity Plan \| Class A Common Stock
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Granted (in shares)	3,831,112
2021 Equity Plan \| Restricted Stock Units (RSUs)
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Shares based payment arrangement, equity instrument other than option, granted in period (in shares)	335,870
Vesting period	3 years
Shares based payment arrangement, vesting rights percentage	33.30%
2021 Equity Plan \| Restricted Stock Units (RSUs) \| Former Chief Executive Officer
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Shares based payment arrangement, equity instrument other than option, vested in period (in shares)	280,000
Vesting period	84 days

CONCENTRATIONS	12 Months Ended
CONCENTRATIONS	Dec. 31, 2022
Risks and Uncertainties [Abstract]
CONCENTRATIONS	CONCENTRATIONS The Company has one major power customer, NYISO, that accounted for 18% and 10% of its revenue for the years ended December 31, 2022 and 2021, respectively. For cryptocurrency datacenter operations, Greenidge considers its mining pool operators to be its customers. Greenidge has historically used a limited number of pool operators that have operated under contracts with a one-day term, which allows Greenidge the option to change pool operators at any time. Revenue from one of the Company’s pool operator customers accounted for approximately 70% and 70% of total revenue for the year ended December 31, 2022, and 2021, respectively. The Company has one natural gas vendor that accounted for approximately 62% and 60% of cost of revenue for the years ended December 31, 2022 and 2021, respectively.

SUPPLEMENTAL BALANCE SHEET AND CASH FLOW INFORMATION - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash paid for interest	$ 16,463	$ 2,385
Cash paid for taxes	$ 2,344	$ 80

MERGER WITH SUPPORT.COM - Estimated Value of The Consideration Paid (Details) $ / shares in Units, $ in Thousands	Sep. 14, 2021 USD ($) $ / shares shares	Dec. 31, 2022 $ / shares	Dec. 31, 2021 $ / shares	Sep. 13, 2021 $ / shares
Business Acquisition [Line Items]
Greenidge common stock value per share (in dollars per share)		$ 0.0001	$ 0.0001
Class A Common Stock
Business Acquisition [Line Items]
Exchange ratio	0.115
Greenidge common stock value per share (in dollars per share)	$ 0.0001			$ 0.0001
Consideration paid \| $	$ 93,900
Greenidge Generation Holdings Inc
Business Acquisition [Line Items]
Support common stock exchanged (in shares) \| shares	25,745,487
Exchange ratio	0.115
Greenidge common stock value per share (in dollars per share)	$ 31.71
Consideration paid \| $	$ 93,885
Greenidge Generation Holdings Inc \| Class A Common Stock
Business Acquisition [Line Items]
Support common stock exchanged (in shares) \| shares	2,960,731

STOCKHOLDERS' EQUITY (Details)							1 Months Ended					3 Months Ended		6 Months Ended	8 Months Ended	12 Months Ended
STOCKHOLDERS' EQUITY (Details)	Oct. 03, 2022 USD ($)	Apr. 28, 2022 shares	Apr. 07, 2022 USD ($)	Apr. 06, 2022 USD ($) shares	Sep. 15, 2021 USD ($)	Sep. 14, 2021 USD ($) $ / shares shares	Feb. 28, 2023 shares	Sep. 30, 2021 shares	Jan. 31, 2021 USD ($) $ / shares shares	Jul. 31, 2020 USD ($) tranche	Oct. 31, 2018 shares	Jan. 01, 2023 USD ($)	Dec. 31, 2022 USD ($) vote $ / shares shares	Mar. 30, 2023 USD ($) shares	Dec. 31, 2022 USD ($) vote $ / shares shares	Dec. 31, 2022 USD ($) vote $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Sep. 13, 2021 $ / shares shares
Class Of Stock [Line Items]
Common stock, authorized (in shares)													3,000,000,000		3,000,000,000	3,000,000,000	3,000,000,000
Greenidge common stock value per share (in dollars per share) \| $ / shares													$ 0.0001		$ 0.0001	$ 0.0001	$ 0.0001
Preferred stock, authorized (in shares)													20,000,000		20,000,000	20,000,000	20,000,000
Preferred stock, par value (in dollars per share) \| $ / shares													$ 0.0001		$ 0.0001	$ 0.0001	$ 0.0001
Preferred stock, outstanding (in shares)													0		0	0	0
Common stock, issued (in shares)													46,252,779		46,252,779	46,252,779	40,865,336
Common stock \| $													$ 5,000		$ 5,000	$ 5,000	$ 4,000
Common stock, outstanding (in shares)													46,252,779		46,252,779	46,252,779	40,865,336
Number of votes \| vote													1		1	1
Maximum class A common stock and class B common stock shares in excess of the exchange cap			19.99%
Greenidge Generation Holdings Inc
Class Of Stock [Line Items]
Number of tranches \| tranche										2
Greenidge Generation Holdings Inc \| Tranche One
Class Of Stock [Line Items]
Tranche value \| $										$ 13,900,000
Greenidge Generation Holdings Inc \| Tranche Two
Class Of Stock [Line Items]
Tranche value \| $										$ 16,300,000
Equity Incentive Plan
Class Of Stock [Line Items]
Shares based payment arrangement, shares purchased for award (in shares)											1,250
Shares based payment arrangement, equity instrument other than option, granted in period (in shares)											750
Support Com
Class Of Stock [Line Items]
Payment of stock issuance costs \| $																	$ 2,297,000
Private Placement
Class Of Stock [Line Items]
Proceeds from issuance of private placement \| $									$ 37,100,000
Discount on consideration received			5.00%		5.00%
Discount on consideration received, triggering event achieved			6.00%		6.00%
Discount on consideration received, triggering event, amount \| $			$ 200,000,000		$ 200,000,000
Maximum percentage of ownership by investor					4.99%
Sale of stock, period			24 months
At The Market Issuance Sales Agreement
Class Of Stock [Line Items]
Number of shares issued in transaction													2,881,536
Underwriter compensation, percentage of gross stock sales	5.00%
Maximum aggregate consideration to be received on transaction \| $	$ 22,800,000
Net proceeds received \| $													$ 2,100,000
At The Market Issuance Sales Agreement \| Subsequent Event
Class Of Stock [Line Items]
Number of shares issued in transaction							1,333,333							15,000,800
Net proceeds received \| $												$ 8,200,000		$ 10,200,000
Greenidge Common Stock
Class Of Stock [Line Items]
Stock split related to exchange for acquisition of ownership interests (in shares)									28,000,000
Preferred Stock
Class Of Stock [Line Items]
Preferred stock, authorized (in shares)																		20,000,000
Preferred stock, par value (in dollars per share) \| $ / shares																		$ 0.0001
Class A Common Stock, $0.0001 par value
Class Of Stock [Line Items]
Common stock, authorized (in shares)																		2,400,000,000
Greenidge common stock value per share (in dollars per share) \| $ / shares						$ 0.0001												$ 0.0001
Conversion ratio																4
Number of shares converted								5,760,000
Common stock, issued (in shares)													17,726,407		17,726,407	17,726,407
Additional common stock issued (in shares)															1,599,229
Additional common stock issued \| $													$ 5,000,000		$ 5,000,000	$ 5,000,000
Stock owned						16.60%
Warrant to purchase (in shares)						344,800
Exercise price (in dollars per share) \| $ / shares						$ 6.25
Fair value of warrants \| $						$ 8,800,000
Number of votes \| vote													1		1	1
Common stock, outstanding (in shares)													17,726,407		17,726,407	17,726,407
Class A Common Stock, $0.0001 par value \| Support Com
Class Of Stock [Line Items]
Additional common stock issued (in shares)						562,174
Additional common stock issued \| $						$ 17,800,000
Class A Common Stock, $0.0001 par value \| Merger Agreement
Class Of Stock [Line Items]
Common stock, issued (in shares)						2,960,731
Common stock \| $						$ 93,900,000
Payment of stock issuance costs \| $						$ 91,600,000
Class A Common Stock, $0.0001 par value \| Common Stock Purchase Agreement and Registration Rights Agreement
Class Of Stock [Line Items]
Proceeds from issuance of private placement \| $			$ 500,000,000		$ 500,000,000
Number of shares issued in transaction				2,547,500
Proceeds from common stock purchase agreement \| $				$ 54,900,000
Class A Common Stock, $0.0001 par value \| Greenidge Common Stock
Class Of Stock [Line Items]
Additional common stock issued (in shares)		5,720,951
Common Class B
Class Of Stock [Line Items]
Common stock, authorized (in shares)																		600,000,000
Greenidge common stock value per share (in dollars per share) \| $ / shares																		$ 0.0001
Conversion ratio									4
Number of shares converted								720,000
Common stock, issued (in shares)													28,526,372		28,526,372	28,526,372
Number of votes \| vote													10		10	10
Common stock, outstanding (in shares)													28,526,372		28,526,372	28,526,372
Common stock, convertible, conversion ratio													1		1	1
GGHI Class B Common Stock
Class Of Stock [Line Items]
Number of shares issued in exchange for acquisition of ownership interests									28,000,000
GGHI Class B Common Stock \| Private Placement
Class Of Stock [Line Items]
Number of shares converted									750
GGHI Class B Common Stock \| Greenidge Common Stock
Class Of Stock [Line Items]
Number of shares issued in exchange for acquisition of ownership interests									7,000,000
Series A Redeemable Convertible Preferred Stock \| Private Placement
Class Of Stock [Line Items]
Number of shares sold in private placement									1,620,000
Price per share sold in private placement (in dollars per share) \| $ / shares									$ 25
Preferred stock, convertible, conversion ratio									4

EARNINGS PER SHARE

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

EARNINGS PER SHARE

The Company calculates basic earnings (loss) per share by dividing the net income (loss) by the weighted average number of shares of common stock outstanding for the period. The diluted earnings (loss) per share is computed by assuming the exercise, settlement, and vesting of all potential dilutive common stock equivalents outstanding for the period using the treasury stock method. Potentially dilutive common shares are excluded from the computations of diluted earnings (loss) per share if their effect would be anti-dilutive. For the year ended December 31, 2022, the Company had a net loss from continuing operations attributable to common shareholders which causes all potentially dilutive securities to be anti-dilutive and are therefore not included in the calculation of earnings per share.

The following table sets forth a reconciliation of the numerator and denominator used to compute basic earnings and diluted per share of common stock.


	For the Year Ended December 31,
($ in thousands, except per share amounts)	2022		2021
Numerator
Net (loss) income from continuing operations	$	(269,741)	$	21,600
Less: Net income attributable to the member units before the reorganization	—		(648)
Net (loss) income from continuing operations attributable to Greenidge	(269,741)		20,952
Loss from discontinued operations, net of tax	(1,327)		(66,080)
Net loss	$	(271,068)	$	(45,128)

Denominator
Basic weighted average shares outstanding	42,373		31,995
Dilutive effect of equity awards	—		592
Dilutive effect of convertible preferred stock	—		4,048
Diluted weighted average shares outstanding	42,373		36,635

(Loss) earnings per basic share:
(Loss) earnings per basic share from continuing operations	$	(6.37)	$	0.65
Loss per basic share from discontinued operations	(0.03)		(2.06)
Loss per basic share	$	(6.40)	$	(1.41)

(Loss) earnings per diluted share:
(Loss) earnings per diluted share from continuing operations	$	(6.37)	$	0.57
Loss per diluted share from discontinued operations	(0.03)		(1.80)
Loss per diluted share	$	(6.40)	$	(1.23)

For the year ended December 31, 2022, there was no impact of dilution from any of the outstanding 247,286 RSUs or 3,641,850 common stock options due to the net loss, since inclusion of any impact from these awards would be anti-dilutive.

For the year ended December 31, 2021, loss per share is applicable only for the period from January 29, 2021 through December 31, 2021, which is the period following the reorganization of Greenidge Generation Holdings LLC (" GGH") into Greenidge and presents the period that the Company had outstanding common stock. Prior to the reorganization, there were no shares of common stock outstanding, and the limited liability structure of GGH consisted of member units. The Company analyzed the calculation of earnings per unit for periods prior to the reorganization and determined that it resulted in values that would not be meaningful to the users of these consolidated financial statements.

DEBT

12 Months Ended

Dec. 31, 2022

Debt Disclosure [Abstract]

DEBT

The following table provides information on the Company's financing agreements:


$ in thousands							As of:
Note	Loan Date	Maturity Date	Interest Rate		Initial Financing		December 31, 2022		December 31, 2021
Equipment Financings:
A	December 2020	June 2022	17.0	%	$	4,482	$	—	$	1,245
B	December 2020	June 2022	17.0	%	428		—		95
C	March 2021	November 2022	17.0	%	2,229		—		1,362
D	April 2021	December 2022	17.0	%	4,012		—		2,674
E - H	May 2021	October 2023	15.0	%	15,724		10,478		15,513
I	July 2021	January 2023	17.0	%	4,457		495		3,468
J	July 2021	March 2023	17.0	%	2,717		—		1,962
K	October 2021	June 2023	17.0	%	2,223		—		1,976
L	March 2022	April 2024	13.0	%	81,375		63,890		—
Senior Unsecured Notes	October 2021/December 2021	October 2026	8.5	%	72,200		72,200		72,200
Secured Promissory Note	March 2022	June 2023	7.5	%	26,500		10,430		—
Total Debt							157,493		100,495
Less: Debt discount and issue costs							(5,747)		(5,667)
Total debt at book value							151,746		94,828
Less: Current portion							(67,161)		(19,577)
Long-term debt, net of current portion and deferred financing fees							$	84,585	$	75,251

The Company incurred interest expense of $21.6 million and $3.7 million during the years ended December 31, 2022 and 2021, respectively, under the terms of these notes payable.

Equipment Financings

The Company had equipment finance agreements, denoted in the table above in rows A through K, that were secured by the purchased miner equipment. These agreements generally required monthly payments of principal, interest and a risk premium fee. The Company pre-paid the remaining balance of loans denoted as rows J and K in November 2022.

Master Equipment Financing Agreement

On March 21, 2022, Greenidge, as guarantor, together with its wholly-owned subsidiaries GTX Gen 1 Collateral LLC, GNY Collateral LLC and GSC Collateral LLC (collectively, the "Borrowers"), entered into a Master Equipment Finance Agreement (the "NYDIG Financing Agreement") with NYDIG ABL LLC ("NYDIG"), as lender, whereby NYDIG agreed to lend to the Borrowers approximately $81 million under loan schedules that were partially funded for approximately $54 million in March 2022, with additional funding of $17 million through December 31, 2022, to finance the acquisition of certain miners and related equipment (the "Financed Equipment"). The Borrowers' obligations under the NYDIG Financing Agreement are fully and unconditionally guaranteed by Greenidge. Outstanding borrowings under the NYDIG Financing Agreement are secured by all assets of the Borrowers, including without limitation, the Financed Equipment and proceeds thereof (including bitcoin). The loan schedules bear interest at a rate of 13% per annum and have terms of twenty-five months. Certain loan schedules were interest-only for a specified period and otherwise payments on loan schedules included both an interest and principal payment. Pursuant to the terms of the NYDIG Financing Agreement, the Borrowers and with certain exceptions, the Company, were subject to certain covenants and restrictive provisions which, among other things limited: the Borrowers’ ability to incur additional indebtedness for borrowed money; additional liens

on the collateral or the equity interests of any of the Borrowers; consolidations or mergers including the Borrowers or the Company unless such would not constitute a Change in Control (as defined therein); disposing of the collateral or any portion of the collateral with certain exceptions; the Borrowers’ ability to make certain restricted payments and investments; and the ability to create certain direct obligations of the Borrowers or the Company unless the NYDIG Financing Agreement is at least pari passu in right of payment; each of which were subject to customary and usual exceptions and baskets. The loans under the NYDIG Financing Agreement could not be voluntarily partially prepaid, but could be prepaid in whole subject to a make-whole calculation. The NYDIG Financing Agreement is denoted in the table above as "Equipment Financings: L."

At December 31, 2022, Greenidge owed a payment of principal and interest in the amount of approximately $1.0 million due on December 25, 2022. Prior to defaulting on any payments, the Company and NYDIG entered into a waiver that stated both parties agreed that failure to pay the December 25, 2022 and the January 10, 2023 payments when due would not be an event of default if payment was made in full by January 27, 2023.

On January 30, 2023, the Company entered into a Debt Settlement Agreement (the "Debt Settlement Agreement"), with NYDIG in order to refinance and replace certain outstanding indebtedness under certain Master Equipment Financing Agreements and related loan documentation (the "MEFAs"). The $75.8 million in debt previously outstanding under the MEFAs was reduced by $58.5 million pursuant to the Debt Settlement Agreement and the remaining $17.3 million outstanding under the MEFAs was refinanced as provided below (the "Refinancing"). As part of the Debt Settlement Agreement, the Company entered into a Senior Secured Loan Agreement (the "Secured Loan"), as borrower, with NYDIG, as administrative agent and as collateral agent.

The initial principal balance under the Secured Loan (the "Refinanced Amount") is approximately $17.3 million. Interest is payable monthly at an interest rate of 15% per annum, computed on the basis of a 360 day year of twelve 30-day months through January 30, 2025. The Secured Loan includes clauses requiring the Company to maintain cash balances in excess of $10 million and failure to maintain this balance can be considered an event of default by the lender. The Secured Loan contains customary representations, warranties and covenants including restrictions on indebtedness, liens, restricted payments and dividend, investments, asset sales and similar covenants and contains customary events of default. In addition, the Secured Loan allows for a voluntary prepayment of the loan in kind of approximately $10.2 million by transferring ownership of certain mining infrastructure assets to NYDIG if NYDIG enters into a binding agreement by April 30, 2023, facilitated by Greenidge, securing rights to a site for a future mining facility. As part of this Refinancing, Greenidge and certain of its subsidiaries have simultaneously entered into (i) a Membership Interest and Asset Purchase Agreement dated January 30, 2023.

Secured Promissory Note

On March 18, 2022, Greenidge issued a secured promissory note, as borrower, in favor of B. Riley Commercial Capital, LLC, as noteholder (the "Noteholder"), evidencing a $26.5 million aggregate principal amount loan by the Noteholder to Greenidge (the "Secured Promissory Note"). The Secured Promissory Note is guaranteed by certain of Greenidge’s wholly-owned subsidiaries: Greenidge South Carolina LLC, GSC RE LLC and 300 Jones Road LLC. The loan outstanding under the Secured Promissory Note originally bore interest at a rate of 6% per annum and originally matured on July 20, 2022, subject to up to five 30-day extensions, through December 2022, that may be elected by Greenidge provided no Event of Default (as defined therein) occurred and is continuing and Greenidge pays an Exit Fee (as defined therein) to the Noteholder. Pursuant to the terms of the Secured Promissory Note, Greenidge and its subsidiaries were subject to certain covenants and restrictive provisions which will, among other things, limit their ability to incur additional indebtedness for borrowed money or additional liens other than debt and liens permitted pursuant to the Secured Promissory Note; consolidate or merge unless Greenidge survives; or transfer all or substantially all of their assets; make certain restricted payments or investments; have a Change of Control (as defined therein); modify certain material agreements; and engage in certain types of transactions with affiliates; each of which are subject to customary and usual exceptions and baskets. The Secured Promissory Note is secured by a first priority mortgage lien on certain real property together with related improvements, fixtures and personal property located at Greenidge's South Carolina Facility. Greenidge’s obligations under the Secured Promissory Note may be prepaid in whole or in part without penalties or fees.

On August 10, 2022, Greenidge and the Noteholder agreed to amend the terms of the Secured Promissory Note, by extending the maturity to June 2023, reducing scheduled monthly amortization payments and revising the interest rate to 7.5%. The Exit Fees (as defined therein) associated with the four 30-day extensions subsequent to August 10, 2022, were accelerated and added to the principal balance as of that date. The principal balance following the amendment was $16.4 million as of August 10, 2022. Additionally mandatory repayments of the Secured Promissory Note were revised, such that 65% of the net cash proceeds received from sales of stock under the 2022 Purchase Agreement would be paid to Noteholder to repay the Secured Promissory Note. The Company evaluated the amendment under ASC 470-50, "Debt

Modification and Extinguishment", and concluded that the updated terms qualified as a debt modification, and therefore, no gain or loss was recorded.

On January 13, 2023, Greenidge and the Noteholder entered into a Waiver and Acknowledgement Letter (the "B Riley Waiver") regarding the terms of the Amended and Restated Bridge Promissory Note dated August 10, 2022 executed by Greenidge in favor of the Noteholder. Under the B Riley Waiver, the Noteholder agreed that Greenidge’s failure to pay the approximately $1.5 million payment of principal and interest due under the BRCC Note on December 20, 2022 would not be an event of default if that payment were made in full by the earlier of January 20, 2023 or the date that Greenidge and the Noteholder enter into a mutually satisfactory amendment to the BRCC Note addressing, among other things, future amortization requirements under the BRCC Note. The waiver left the due dates for other scheduled payments under the BRCC Note unaffected.

On January 30, 2023, Greenidge entered into the Consent and Amendment No. 1 to the Promissory Note (the "B. Riley Amendment") with B. Riley Commercial. The B. Riley Amendment modified the payment dates and principal and interest payment amounts under the Promissory Note, requiring no principal and interest payments until June 2023 and monthly payments thereafter through November 2023. Under the B. Riley Amendment, Greenidge is required to make mandatory monthly debt repayments under the Promissory Note of 15% of the net proceeds of sales of equity, including sales under the ATM Agreement and the equity purchase agreement. In addition, Greenidge may potentially reduce its monthly principal amortization payments from approximately $1.5 million to $400 thousand per month, if it were to pay at least $6 million of principal debt prior to June 20, 2023. Greenidge agreed to pay a $1 million dollar amendment fee to B. Riley Commercial, payable by the delivery of Greenidge class A common stock to the Noteholder, as principal under the ATM Agreement, at a price of $0.75 per share.

Under the terms of the B. Riley Amendment, the parties agreed that each of B. Riley Commercial and Atlas Holdings LLC, or an affiliate thereof, would purchase $1 million of Greenidge’s class A common stock under the ATM Agreement. B. Riley would purchase common stock on a principal basis at $0.75 per share and Atlas Holdings LLC or its affiliate would purchase common stock at market prices through B. Riley acting as sales agent. Greenidge would use the $1.9 million of proceeds from the sale of this equity to repay a portion of the Promissory Note, reducing the principal balance due under the Promissory Note to approximately $9 million. Additionally, Greenidge is actively pursuing the sale of excess real estate that is not needed for the mining operations at the South Carolina property. Under the terms of the Promissory Note, if all or a portion of the South Carolina property is sold, the net proceeds from the sale are required to be used to repay the Promissory Note. The Company estimates that it would repay approximately $6 to $7 million of the Promissory Note, if it were to complete a sale of the excess real estate.

Senior Unsecured Notes

During the fourth quarter of 2021, the Company sold $72.2 million of 8.50% Senior Notes due October 2026 (the "Notes") pursuant to the Company's registration statement on Form S-1. Interest on the Notes is payable quarterly in arrears on January 31, April 30, July 31 and October 31 of each year to the holders of record at the close of business on the immediately preceding January 15, April 15, July 15 and October 15, respectively. The Notes are senior unsecured obligations of the Company and rank equal in right of payment with the Company's existing and future senior unsecured indebtedness. The Notes trade on the Nasdaq Global Select Market under the symbol "GREEL."

The Company may redeem the Notes for cash in whole or in part at any time (i) on or after October 31, 2023 and prior to October 31, 2024, at a price equal to 102% of their principal amount, plus accrued and unpaid interest to, but excluding, the date of redemption, (ii) on or after October 31, 2024 and prior to October 31, 2025, at a price equal to 101% of their principal amount, plus accrued and unpaid interest to, but excluding, the date of redemption, and (iii) on or after October 31, 2025 and prior to maturity, at a price equal to 100% of their principal amount, plus accrued and unpaid interest to, but excluding, the date of redemption. In addition, the Company may redeem the Notes, in whole, but not in part, at any time at its option, at a redemption price equal to 100.5% of the principal amount plus accrued and unpaid interest to, but not including, the date of redemption, upon the occurrence of certain change of control events.

Fair Value Disclosures

The notional value and estimated fair value of the Company's debt totaled $157.5 million and $88.5 million, respectively at December 31, 2022 and $100.5 million and $97.5 million, respectively at December 31, 2021. The notional value does not include unamortized discounts and debt issuance costs of $5.7 million and $5.7 million at December 31, 2022 and 2021, respectively. The estimated fair value of the Bonds Payable, representing the fair value of the Company's 8.50% senior secured notes due October 2026, was measured using quoted market prices at the reporting date. Such

instruments were valued using Level 1 inputs. For the Equipment Financings and Secured Promissory Note, the Company believes the notional values approximate their fair values.

Minimum future principal payments on debt as of December 31, 2022 were as follows based on the terms of the debt at that date:


$ in thousands
2023	$	68,273
2024	17,020
2025	—
2026	72,200
2027	—
Total	$	157,493

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI https://asc.fasb.org/topic&trid=2208564

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (h)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1C
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1I
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1I
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (g)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1C
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1C
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1E
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1I
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

+ Details

MERGER WITH SUPPORT.COM (Tables)

12 Months Ended

Dec. 31, 2022

Business Combination and Asset Acquisition [Abstract]

Estimated Value of the Consideration Paid

The following table summarizes the estimated value of the consideration paid (purchase price):


$ in thousands, except per share amount
Support common stock exchanged	25,745,487
Exchange ratio	0.115
Greenidge Class A common stock exchanged	2,960,731
Greenidge common stock value per share	$	31.71
Consideration paid	$	93,885

Preliminary Allocation of the Purchase Price to the Identifiable Assets Acquired and Liabilities

The following table summarizes the allocation of the purchase price to the identifiable assets acquired and liabilities assumed by Greenidge, with the excess of the purchase price over the fair value of Support.com’s net assets recorded as goodwill.


$ in thousands
Cash and cash equivalents	$	27,113
Short term investments	496
Accounts receivable	5,383
Prepaid expenses and other current assets	713
Property and equipment	1,349
Other long-term assets	383
Accounts payable	(117)
Accrued expenses and other current liabilities	(3,535)
Other long-term liabilities	(242)
Intangible assets	3,810
Deferred tax assets	13,163
Goodwill	45,369
Total consideration	$	93,885

Identifiable Intangible Assets Determined on a Preliminary Basis

The following fair value estimates for identifiable intangible assets were based on assumptions that market participants would use in pricing an asset, based on the most advantageous market for the asset (i.e., its highest and best use).

$ in thousands
Identifiable Intangible Asset

Useful Life

Fair Value

Customer relationships

4 years

3,320

Tradename

5 years

490

Total identifiable intangible assets

3,810

EQUITY BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Unvested Restricted Common Stock Unit Awards Activity

The Company’s unvested restricted common stock unit awards activity for the year ended December 31, 2022 is summarized below:


	RSUs	Weighted Average Grant Date Fair Value
Unvested at December 31, 2021	516,987	$	6.80
Granted	335,870	$	2.21
Vested	(605,571)	$	4.22
Unvested at December 31, 2022	247,286	$	6.89

Stock Options Activity

The Company’s stock options activity for the year ended December 31, 2022 is summarized below:


	Options	Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2021	583,080	$	6.01	-
Granted	3,076,842	$	1.32
Exercised	(2,296)	$	6.25
Forfeited	(11,479)	$	6.68
Expired	(4,297)	$	6.83
Outstanding at December 31, 2022	3,641,850	$	2.05	9.5	$	1,056
Exercisable as of December 31, 2022	444,300	$	5.88	8.1	$	8,386

Weighted Average Assumptions Relating to the Valuation of Stock Options

The weighted average assumptions relating to the valuation of stock options granted for the year ended December 31, 2022 and 2021 were as follows:


	2022			2021
Weighted average exercise price of options granted	$	1.32		$	6.07
Expected volatility	89		%	35		%
Expected term (years)	6.0			4.0
Risk-free interest rate	4.1		%	0.5		%
Expected dividend yield	0.0		%	0.0		%

ORGANIZATION AND DESCRIPTION OF BUSINESS (Details)	Dec. 31, 2022 location
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of locations where facilities are owned and operated	2

DISCONTINUED OPERATIONS

12 Months Ended

Dec. 31, 2022

Discontinued Operations and Disposal Groups [Abstract]

DISCONTINUED OPERATIONS

A business is classified as held for sale when management having the authority to approve the action commits to a plan to sell the business, the sale is probable to occur during the next 12 months at a price that is reasonable in relation to its current fair value and certain other criteria are met. A business classified as held for sale is recorded at the lower of its carrying amount or estimated fair value less cost to sell. When the carrying amount of the business exceeds its estimated fair value less cost to sell, a loss is recognized and updated each reporting period as appropriate.

In January 2023, Greenidge completed the sale of a portion of the assets of Support.com for net proceeds of approximately $2.6 million, and is continuing to evaluate alternatives for the remainder of the Support.com segment assets.

Major classes of assets and liabilities consist of the following:


	As of December 31,
$ in thousands	2022		2021
Assets:
Accounts receivable	$	3,996	$	5,287
Prepaid expenses and other current assets	1,253		1,662
Current assets held for sale	5,249		6,949

Property and equipment	743		1,079
Intangible assets, net	—		3,537
Goodwill	—		3,062
Other assets	481		264

Long-term assets held for sale	1,224		7,942
Assets held for sale	6,473		14,891

Liabilities:
Accounts payable	191		174
Accrued expenses	3,351		3,692
Income taxes payable	—		137
Current liabilities held for sale	3,542		4,003

Other long-term liabilities	432		368
Long-term liabilities held for sale	432		368
Liabilities held for sale	3,974		4,371

The Company reasonably expects to close on this transaction within one year; therefore, the assets and liabilities of Support.com have been presented as current as of December 31, 2022.

Financial results from discontinued operations consist of the following:


	For the Year Ended December 31,
$ in thousands	2022		2021
Revenue	$	31,464	$	9,952
Cost of revenue - services and other (exclusive of depreciation and amortization)	(14,791)		(5,430)
Depreciation and amortization	(1,298)		(381)
Selling, general and administrative	(9,852)		(3,352)
Merger and other costs	(1,343)		(32,087)
Goodwill and intangibles asset impairment charge	(5,672)		(42,307)
Other income, net	353		32
Pretax loss of discontinued operations	(1,139)		(73,573)
Income tax provision (benefit)	188		(7,493)
Loss from discontinued operations, net of tax	$	(1,327)	$	(66,080)

The Company’s effective income tax rate from discontinued operations for the years ended December 31, 2022 and 2021 was (16.5)% and 10.2%, respectively, primarily due to goodwill impairment and nondeductible transaction costs.

Support.com Goodwill and Intangible Assets

As described in Notes 1 and 3, on September 14, 2021 Greenidge and Support.com combined their respective businesses through an all-stock merger transaction that was accounted for as a business combination in accordance with ASC 805. Prior to the Merger, Greenidge did not have any goodwill or intangible assets. As of December 31, 2022, the Company has classified the Support.com business as held for sale and discontinued operations in these consolidated financial statements.

Goodwill

Changes in the carrying amount of goodwill related to the Company's discontinued operations were as follows:


$ in thousands
Balance December 31, 2020	$	—
Support acquisition (Note 3)	45,369
Impairment charge – Fourth Quarter 2021 (see below)	(42,307)
Balance December 31, 2021	3,062
Impairment charge – Fourth Quarter 2022 (see below)	(3,062)
Balance December 31, 2022	$	—

Greenidge performed its annual goodwill impairment test at December 31, 2021. The test concluded that the fair value of the Support Services reporting unit was less than its carrying value (including goodwill), and that a portion of the Company’s goodwill was impaired. In making this determination, the Company updated its discounted cash flow analysis, including updated business projections and weighted average cost of capital factors, as well as other valuation methodologies such as comparisons with similar companies and industry multiples. Accordingly, the Company recorded a non-cash goodwill impairment charge of $42.3 million which is included in loss from discontinued operations, net of tax in its consolidated statement of operations for the year ended December 31, 2021.

In the fourth quarter 2022, due to the contract expiration of Support.com's largest customer, the Company determined that this was a triggering event to test for goodwill impairment and determined that goodwill was fully impaired as the value of the Support.com reporting unit was below the fair value of the reporting unit. As a result of the analysis, the company recorded a goodwill impairment of $3.1 million which is included in the loss from discontinued operations, net of tax on the consolidated statement of operations.

Intangible Assets

Changes in the carrying amount of intangible assets related to the Company's discontinued operations were as follows:


$ in thousands	Customer Relationships		Tradename		Total
Balance December 31, 2020	$	—	$	—	$	—
Support acquisition (Note 3)	3,320		490		3,810
Amortization expense	(244)		(29)		(273)
Balance December 31, 2021	3,076		461		3,537
Amortization expense	(830)		(97)		(927)
Impairment charge – Fourth Quarter 2022 (see below)	(2,246)		(364)		(2,610)
Balance December 31, 2022	$	—	$	—	$	—

In the fourth quarter 2022, due to the contract expiration of Support.com's largest customer, the Company determined that this was a triggering event to test for intangible asset impairment and determined that both the customer relationships and the tradename were fully impaired as the value was below the expected future cash flows. As a result of the analysis, the Company recorded an impairment of the intangible assets of $2.2 million for customer relationships and $0.4 million for the tradename which is included in the loss from discontinued operations, net of tax on the consolidated statements of operations for the year ended December 31, 2022.

MERGER WITH SUPPORT.COM - Preliminary Allocation of the Purchase Price to the Identifiable Assets Acquired and Liabilities (Details) - Greenidge Generation Holdings Inc $ in Thousands	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Cash and cash equivalents	$ 27,113
Short term investments	496
Accounts receivable	5,383
Prepaid expenses and other current assets	713
Property and equipment	1,349
Other long-term assets	383
Accounts payable	(117)
Accrued expenses and other current liabilities	(3,535)
Other long-term liabilities	(242)
Intangible assets	3,810
Deferred tax assets	13,163
Goodwill	45,369
Total consideration	$ 93,885

INCOME TAXES - Income before Income Tax, Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Domestic	$ (254,739)	$ 29,501
Foreign	0	0
(Loss) income from continuing operations before taxes	$ (254,739)	$ 29,501

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126941158&loc=d3e41242-110953

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(10))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(8))
-URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI https://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(15))
-URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ Details

SUPPLEMENTAL BALANCE SHEET AND CASH FLOW INFORMATION

12 Months Ended

Dec. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

SUPPLEMENTAL BALANCE SHEET AND CASH FLOW INFORMATION

The following table provides additional details of Prepaid expenses and other assets:


	As of December 31,
$ in thousands	2022		2021
Prepaid insurance	$	3,822	$	7,013
Electric deposits	1,400		—
Other prepaid expenses	1,044		471
Prepaid expenses and other assets	$	6,266	$	7,484

The Company had the following noncash investing and financing activities:


	For the Year Ended December 31,
$ in thousands	2022		2021
Shares issued to Support.com shareholders upon Merger (Notes 3 and 7)	$	—	$	93,885
Stock issued to purchase miners	$	—	$	991
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock (Note 7)	$	—	$	72,048
Issuance of shares for investor fee associated with successful completion of Merger (Notes 3 and 7)	$	—	$	17,826
Issuance of warrants to advisor in connection with completion of Merger (Note 3 and 7)	$	—	$	8,779

Property and equipment purchases in accounts payable	$	6,676	$	2,769

The following table provides supplemental cash flow information for cash paid for interest and income taxes:


	For the Year Ended December 31,
$ in thousands	2022		2021
Cash paid for interest	$	16,463	$	2,385
Cash paid for taxes	$	2,344	$	80

PROPERTY AND EQUIPMENT, NET - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 130,417		$ 130,417	$ 233,237
Less: Accumulated depreciation	0		0	(17,225)
Property and equipment, net	$ 130,417		$ 130,417	216,012
Plant infrastructure
Property Plant And Equipment [Line Items]
Estimated useful lives	10 years		10 years
Property, plant and equipment, gross	$ 0		$ 0	34,725
Miners
Property Plant And Equipment [Line Items]
Estimated useful lives	3 years	5 years	3 years
Property, plant and equipment, gross	$ 81,979		$ 81,979	48,121
Miner facility infrastructure
Property Plant And Equipment [Line Items]
Estimated useful lives	10 years	15 years	10 years
Property, plant and equipment, gross	$ 14,203		$ 14,203	15,143
Land
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	8,460		$ 8,460	8,460
Equipment
Property Plant And Equipment [Line Items]
Estimated useful lives			5 years
Property, plant and equipment, gross	45		$ 45	226
Software
Property Plant And Equipment [Line Items]
Estimated useful lives			3 years
Property, plant and equipment, gross	0		$ 0	186
Coal ash impoundment
Property Plant And Equipment [Line Items]
Estimated useful lives			4 years
Property, plant and equipment, gross	0		$ 0	2,410
Construction in process
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	18,349		18,349	25,856
Miner deposits
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 7,381		$ 7,381	$ 98,110

INCOME TAXES - Components of Provision (Benefit) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Current tax provision:
Federal	$ 0	$ 0
State	(53)	2,344
Foreign	0	0
Total current tax (benefit) provision	(53)	2,344
Deferred tax provision:
Federal	11,771	5,763
State	3,284	(206)
Foreign	0	0
Total deferred tax provision	15,055	5,557
Total provision for income taxes	$ 15,002	$ 7,901

RELATED PARTY TRANSACTIONS - Narrative (Details)		1 Months Ended	12 Months Ended
RELATED PARTY TRANSACTIONS - Narrative (Details)	Mar. 19, 2021 USD ($)	Dec. 31, 2021 USD ($) ft² a	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) ft² a
Spartanburg Facility \| Series Of Individually Immaterial Asset Acquisitions
Related Party Transaction [Line Items]
Purchase price of the property		$ 15,000,000
Spartanburg Facility \| Building
Related Party Transaction [Line Items]
Area of land \| ft²		750,000		750,000
Spartanburg Facility \| Land
Related Party Transaction [Line Items]
Area of land \| a		175		175
Greenidge Blocker Corp
Related Party Transaction [Line Items]
Costs reimbursed			$ 200,000	$ 100,000
Letter of Credit
Related Party Transaction [Line Items]
Net proceeds from new line of credit (at least)	$ 10,000,000
Letter of Credit \| New York State Department of Environmental Conservation
Related Party Transaction [Line Items]
Repayments of lines of credit			5,000,000
Letter of Credit \| Empire Pipeline Incorporated
Related Party Transaction [Line Items]
Repayments of lines of credit			3,600,000
Atlas
Related Party Transaction [Line Items]
Limited guaranty payment			1,000,000
Exposure under guarantee		$ 0	0	$ 0
Atlas \| Letter of Credit
Related Party Transaction [Line Items]
Line of credit fees			$ 100,000

INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Income before Income Tax, Domestic and Foreign

The components of (loss) income from continuing operations before the provision for income taxes are as follows:


	For the Year Ended December 31,
$ in thousands	2022		2021
Domestic	$	(254,739)	$	29,501
Foreign	—		—
Total	$	(254,739)	$	29,501

Components of Provision (Benefit) Income Taxes

The components of the provision for income taxes from continuing operations consist of the following:


	For the Year Ended December 31,
$ in thousands	2022		2021
Current tax provision:
Federal	$	—	$	—
State	(53)		2,344
Foreign	—		—
Total current tax (benefit) provision	(53)		2,344
Deferred tax provision:
Federal	11,771		5,763
State	3,284		(206)
Foreign	—		—
Total deferred tax provision	15,055		5,557
Total provision for income taxes	$	15,002	$	7,901

Effective Income Tax Rate Reconciliation

A reconciliation of the amounts at U.S. federal statutory tax rate to the Company’s effective tax rate for continuing operations is as follows:


	For the Year Ended December 31,
$ in thousands	2022		2021
(Benefit) provision at federal statutory rate	$	(53,495)	$	6,195
State income taxes, net of federal tax benefits	2,553		2,124
Change in valuation allowance	65,395		—
Other, net	549		(418)
Provision for income taxes	$	15,002	$	7,901

Components of Deferred Tax Assets and Liabilities

Deferred income taxes are provided for the tax effect of temporary differences between the financial reporting basis and the tax basis of assets and liabilities. Significant components of the Company’s deferred tax assets (liabilities) are as follows:


	As of December 31,
$ in thousands	2022		2021
Deferred tax assets:
Net operating loss carryforwards	$	58,008	$	21,716
Intangibles	1,674		268
Stock-based compensation	462		456
Capitalized costs	8,794		9,327
Interest Expense Limitation Carryforward	4,653		—
Environmental liabilities	4,538		—
Fixed Assets	3,672		—
Other	3,401		469
Gross deferred tax assets	85,202		32,236
Less: valuation allowance	(85,202)		(6,993)
Deferred tax assets, net	—		25,243

Deferred tax liabilities:
Investment in partnership	—		(8,891)
Property and equipment	—		(659)
Other	—		(635)
Deferred tax liabilities	—		(10,185)
Total net deferred tax assets	$	—	$	15,058

MERGER WITH SUPPORT.COM

12 Months Ended

Dec. 31, 2022

Business Combination and Asset Acquisition [Abstract]

MERGER WITH SUPPORT.COM

As described in Note 1, on September 14, 2021, Greenidge and Support.com combined their respective businesses through an all-stock merger transaction where Support.com became a wholly owned subsidiary of Greenidge. The Merger was accounted for as a business combination using the acquisition method of accounting in accordance with the provisions of FASB ASC 805, Business Combinations ("ASC 805"). Greenidge was determined to be the acquiring company for accounting purposes. As of December 31, 2022, the Company has classified the Support.com business as held for sale and discontinued operations in these consolidated financial statements (see Note 4).

At the effective time of the Merger ("Effective Time"): (i) each share of common stock of Support.com (the "Support.com Common Stock") issued and outstanding immediately prior to the Effective Time was cancelled and extinguished and automatically converted into the right to receive 0.115 (the "Exchange Ratio") shares of class A common stock, par value $0.0001, of the Company, (ii) each outstanding stock option of Support.com immediately prior to the Effective Time (an "Option") was accelerated, and the holder of each Option received the right to receive an amount of the Company’s class A common stock equal to the Exchange Ratio, multiplied by the number of shares of Support.com Common Stock underlying such Option, less any shares withheld in satisfaction of the aggregate exercise price of such Option and such holder’s tax withholding obligations and (iii) each outstanding restricted stock unit of Support.com immediately prior to the Effective Time (an "RSU") was accelerated, and the holder of each RSU received the right to receive an amount of the Company’s class A common stock equal to the Exchange Ratio, multiplied by the number of shares of Support.com Common Stock underlying such RSU, less any shares and such holder’s tax withholding obligations.

The Company applied the acquisition method of accounting in accordance with ASC 805, with respect to the identifiable assets and liabilities of Support.com, which were measured at estimated fair value as of the date of the business combination. Any excess of the acquisition price over the fair value of the assets and liabilities acquired was recorded as goodwill.

As required by ASC 805, the acquisition price was determined based on the value of the consideration paid to Support.com shareholders, calculated to be $93.9 million (see table below). This acquisition price was allocated to the identifiable assets acquired and liabilities assumed of Support.com based upon their estimated fair values at the Merger date, primarily using Level 2 and Level 3 inputs.

The following table summarizes the estimated value of the consideration paid (purchase price):


$ in thousands, except per share amount
Support common stock exchanged	25,745,487
Exchange ratio	0.115
Greenidge Class A common stock exchanged	2,960,731
Greenidge common stock value per share	$	31.71
Consideration paid	$	93,885

For the period immediately prior to the effective date of the Merger, Greenidge was a private company, and Support.com’s stock price fluctuated significantly based on factors not representative of the value of its underlying operations; therefore, Greenidge used the average of its closing stock price for the first ten days of trading on the Nasdaq Exchange ($31.71 per share) to measure the value of the consideration paid to Support.com shareholders.


$ in thousands
Cash and cash equivalents	$	27,113
Short term investments	496
Accounts receivable	5,383
Prepaid expenses and other current assets	713
Property and equipment	1,349
Other long-term assets	383
Accounts payable	(117)
Accrued expenses and other current liabilities	(3,535)
Other long-term liabilities	(242)
Intangible assets	3,810
Deferred tax assets	13,163
Goodwill	45,369
Total consideration	$	93,885

For assets and liabilities (excluding identifiable intangible assets and deferred taxes), the Company estimated that the carrying values, net of allowances, represented the fair values at the effective date of the Merger.

Acquisitions are accounted for using the acquisition method which requires allocation of the purchase price to assets acquired and liabilities assumed based on estimated fair values. Any excess of the purchase price over the fair value of the assets and liabilities acquired is recorded as goodwill. The Company performs a goodwill impairment test annually in the fourth quarter or more frequently if events or circumstances indicate that an impairment loss may have been incurred. The applicable guidance allows an entity to first assess qualitative factors to determine if it is more likely than not that the fair value of a reporting unit is less than carrying value. If it is determined that it is more likely than not that the fair value of a reporting unit is less than carrying value then the company will estimate and compare the fair value of its reporting units to their carrying value, including goodwill. If the carrying value of goodwill is not recoverable, an impairment is recognized for the difference. Fair value is determined through the use of projected future cash flows, multiples of earnings and sales and other factors. Such analysis requires the use of certain market assumptions and discount factors, which are subjective in nature. See Note 4, "Discontinued Operations" for further details on the Company's impairment of the goodwill.

$ in thousands
Identifiable Intangible Asset

Useful Life

Fair Value

Customer relationships

4 years

3,320

Tradename

5 years

490

Total identifiable intangible assets

3,810

The fair value of the customer relationships intangible asset was valued using a multi-period excess earnings method, a form of the income approach, which incorporates the estimated future cash flows to be generated from Support.com’s existing customer base. Excess earnings are the earnings remaining after deducting the market rates of return on the estimated values of contributory assets, including debt-free net working capital, tangible assets, and other identifiable intangible assets. The excess earnings are thereby calculated for each year of multi-year projection periods and discounted to present value.

The fair value of the Support.com tradename was valued using the relief from royalty method under the income approach. This method estimates the cost savings generated by a company related to the ownership of an asset for which

it would otherwise have had to pay royalties or license fees on revenues earned through the use of the asset and discounted to present value. See Note 4, "Discontinued Operations" for further details on the Company's impairment of the intangible assets.

Results of Support.com Operations Since the Merger

For the year ended December 31, 2021, the acquired Support.com business contributed $10.0 million in revenue and an operating loss of $73.6 million, which included a goodwill impairment charge of approximately $42.3 million. These results are included within loss from discontinued operations, net of tax on the Consolidated Statement of Operations.

Supplemental Pro Forma Financial Information

In accordance with ASC 805, supplemental unaudited pro forma information gives effect to the Merger as if it had occurred on January 1, 2021. Because Support.com has been classified as held for sale, its results of operations are included in loss from discontinued operations, net of tax in the consolidated statements of operations and there would be no change to reported revenues from continuing operations on a pro forma basis for those periods. On an unaudited pro forma basis, the net loss of the combined entity as though the business combination had occurred on January 1, 2021 is $50.5 million.

The unaudited pro forma financial information reflects certain adjustments related to the acquisition, such as:

•Conforming the accounting policies of Support.com to those applied by Greenidge;

•Recording certain incremental expenses resulting from purchase accounting adjustments, such as amortization expense in connection with fair value adjustments to intangible assets; and

•Recording the related tax effects of pro forma adjustments.

The pro forma net loss for year ended December 31, 2021 includes $36.7 million of transaction costs ($27.7 million after tax), such as advisor fees, legal and accounting expenses. These costs will not affect the combined company’s statement of operations beyond 12 months after the closing date, September 14, 2021.

The unaudited pro forma financial information should not be relied upon as being indicative of the historical results that would have been obtained if the Merger had actually occurred on that date, nor the results of operations of the Company in the future.

PROPERTY AND EQUIPMENT, NET (Tables)

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Summary of Property and Equipment, Net


Asset Class			Estimated Useful Lives
Plant infrastructure			10 years
Miners			3 years
Miner facility infrastructure			10 years

Equipment			5 years
Software			3 years

Property and equipment, net consisted of the following at December 31, 2022 and 2021:


$ in thousands	Estimated Useful Lives	December 31, 2022		December 31, 2021
Plant infrastructure	10 years	$	—	$	34,725
Miners	3 years	81,979		48,121
Miner facility infrastructure	10 years	14,203		15,143
Land	N/A	8,460		8,460
Equipment	5 years	45		226
Software	3 years	—		186
Coal ash impoundment	4 years	—		2,410
Construction in process	N/A	18,349		25,856
Miner deposits	N/A	7,381		98,110
		130,417		233,237
Less: Accumulated depreciation		—		(17,225)
		$	130,417	$	216,012

EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Basic Earnings and Diluted per Share of Common Stock

The following table sets forth a reconciliation of the numerator and denominator used to compute basic earnings and diluted per share of common stock.


	For the Year Ended December 31,
($ in thousands, except per share amounts)	2022		2021
Numerator
Net (loss) income from continuing operations	$	(269,741)	$	21,600
Less: Net income attributable to the member units before the reorganization	—		(648)
Net (loss) income from continuing operations attributable to Greenidge	(269,741)		20,952
Loss from discontinued operations, net of tax	(1,327)		(66,080)
Net loss	$	(271,068)	$	(45,128)

Denominator
Basic weighted average shares outstanding	42,373		31,995
Dilutive effect of equity awards	—		592
Dilutive effect of convertible preferred stock	—		4,048
Diluted weighted average shares outstanding	42,373		36,635

(Loss) earnings per basic share:
(Loss) earnings per basic share from continuing operations	$	(6.37)	$	0.65
Loss per basic share from discontinued operations	(0.03)		(2.06)
Loss per basic share	$	(6.40)	$	(1.41)

(Loss) earnings per diluted share:
(Loss) earnings per diluted share from continuing operations	$	(6.37)	$	0.57
Loss per diluted share from discontinued operations	(0.03)		(1.80)
Loss per diluted share	$	(6.40)	$	(1.23)

INCOME TAXES

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

INCOME TAXES

The components of (loss) income from continuing operations before the provision for income taxes are as follows:


	For the Year Ended December 31,
$ in thousands	2022		2021
Domestic	$	(254,739)	$	29,501
Foreign	—		—
Total	$	(254,739)	$	29,501

The components of the provision for income taxes from continuing operations consist of the following:


	For the Year Ended December 31,
$ in thousands	2022		2021
Current tax provision:
Federal	$	—	$	—
State	(53)		2,344
Foreign	—		—
Total current tax (benefit) provision	(53)		2,344
Deferred tax provision:
Federal	11,771		5,763
State	3,284		(206)
Foreign	—		—
Total deferred tax provision	15,055		5,557
Total provision for income taxes	$	15,002	$	7,901

A reconciliation of the amounts at U.S. federal statutory tax rate to the Company’s effective tax rate for continuing operations is as follows:


	For the Year Ended December 31,
$ in thousands	2022		2021
(Benefit) provision at federal statutory rate	$	(53,495)	$	6,195
State income taxes, net of federal tax benefits	2,553		2,124
Change in valuation allowance	65,395		—
Other, net	549		(418)
Provision for income taxes	$	15,002	$	7,901

The Company’s effective tax rate of (5.9)% for the year ended December 31, 2022 was lower than the U.S. federal statutory income tax rate of 21% primarily due to a change in the valuation allowance and state taxes.

The Company’s effective tax rate of 26.8% for the year ended December 31, 2021 was higher than the U.S. federal statutory income tax rate 21% primarily due to the impact of state taxes.


	As of December 31,
$ in thousands	2022		2021
Deferred tax assets:
Net operating loss carryforwards	$	58,008	$	21,716
Intangibles	1,674		268
Stock-based compensation	462		456
Capitalized costs	8,794		9,327
Interest Expense Limitation Carryforward	4,653		—
Environmental liabilities	4,538		—
Fixed Assets	3,672		—
Other	3,401		469
Gross deferred tax assets	85,202		32,236
Less: valuation allowance	(85,202)		(6,993)
Deferred tax assets, net	—		25,243

Deferred tax liabilities:
Investment in partnership	—		(8,891)
Property and equipment	—		(659)
Other	—		(635)
Deferred tax liabilities	—		(10,185)
Total net deferred tax assets	$	—	$	15,058

As of December 31, 2022, the Company had net operating loss carryforwards ("NOL") of approximately $230.8 million for U.S. federal income purposes, of which $1.2 million begins to expire in 2023. The Company also had net operating loss carryforwards for state income tax purposes of approximately $169.3 million, which begin to expire in 2023. U.S. Federal NOLs incurred in or after 2018 have an indefinite carryforward period, which can be offset by 80% of future taxable income in any given year.

Of the total federal NOLs, $60.8 million were acquired with Support.com, Inc. in 2021 and are subject to Section 382 limitation. Utilization of the Company's net operating loss and tax credit carryforwards can become subject to a substantial annual limitation due to the ownership change limitations provided by Section 382 and 383 of the Internal Revenue Code and similar state provisions. Such an annual limitation could result in the expiration or elimination of the net operating loss and tax credit carryforwards before utilization. The Company has performed an analysis of its changes in ownership under Section 382 of the Internal Revenue Code. Management currently believes that the Section 382 limitation will limit utilization of certain acquired net operating loss and tax credit carryforwards of Support.com and may defer the realization of the tax benefit associated with the acquired tax attributes from Support.com. As of December 31, 2022, the Company has classified the Support.com business as held for sale. If Support.com, Inc. does not continue operations under ownership by the Company during the 2-year period beginning on the change date, September 14, 2021, the Section 382 limitation for any post-change year shall be zero and these NOLs will be unavailable for use by the Company.

Effective as of January 1, 2022, Greenidge Generation Holdings LLC ("GGH LLC") elected to be classified as a taxable corporation for U.S. federal tax purposes by making the check-the-box ("CTB") election and is no longer classified as a partnership. As a result of this CTB election, the Company derecognized the deferred tax liability of investment in partnership and recognized the inside basis of deferred tax assets and deferred tax liabilities of GGH LLC as of January 1, 2022.

In assessing the need for a valuation allowance, the Company considered whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The Company evaluated its ability to realize the tax benefits

associated with deferred tax assets by analyzing the relative impact of all the available positive and negative evidence regarding the Company’s forecasted taxable income, the reversal of existing deferred tax liabilities, taxable income in prior carry-back years (if permitted) and the availability of tax planning strategies. To the extent the Company does not consider it is more likely than not that a deferred tax asset will be recovered, valuation allowance is established. On the basis of this evaluation, as of December 31, 2022, the Company recorded a full valuation allowance on its net deferred tax assets of $85.2 million, as it did not meet the more likely than not threshold required under ASC 740-10-30. The main form of negative evidence is the three-year cumulative losses.

The Company files U.S., state and foreign income tax returns in jurisdictions with varying statutes of limitations. The federal statute of limitation is three years and the state and foreign statutes of limitations are three to four years. Due to net operating loss carryforwards, the Company’s income tax returns remain open and subject to examination for tax years 2004 and thereafter by federal and state tax authorities. The 2020 through 2022 tax years generally remain open and subject to audit by foreign tax authorities.

The Company recognizes the tax benefit from uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the tax authorities, based on the technical merits of the position. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as part of the provision for income taxes. As of December 31, 2022, the Company has not recorded any amounts for unrecognized tax benefits. The Company’s management does not expect that total amount of unrecognized tax benefits will materially change over the next twelve months.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 21
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 17
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 14
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 270
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI https://asc.fasb.org/topic&trid=2144680

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

DEBT (Tables)

12 Months Ended

Dec. 31, 2022

Debt Disclosure [Abstract]

Equipment Financing Agreements

The following table provides information on the Company's financing agreements:


$ in thousands							As of:
Note	Loan Date	Maturity Date	Interest Rate		Initial Financing		December 31, 2022		December 31, 2021
Equipment Financings:
A	December 2020	June 2022	17.0	%	$	4,482	$	—	$	1,245
B	December 2020	June 2022	17.0	%	428		—		95
C	March 2021	November 2022	17.0	%	2,229		—		1,362
D	April 2021	December 2022	17.0	%	4,012		—		2,674
E - H	May 2021	October 2023	15.0	%	15,724		10,478		15,513
I	July 2021	January 2023	17.0	%	4,457		495		3,468
J	July 2021	March 2023	17.0	%	2,717		—		1,962
K	October 2021	June 2023	17.0	%	2,223		—		1,976
L	March 2022	April 2024	13.0	%	81,375		63,890		—
Senior Unsecured Notes	October 2021/December 2021	October 2026	8.5	%	72,200		72,200		72,200
Secured Promissory Note	March 2022	June 2023	7.5	%	26,500		10,430		—
Total Debt							157,493		100,495
Less: Debt discount and issue costs							(5,747)		(5,667)
Total debt at book value							151,746		94,828
Less: Current portion							(67,161)		(19,577)
Long-term debt, net of current portion and deferred financing fees							$	84,585	$	75,251

Minimum Future Principal Payments on Debt

Minimum future principal payments on debt as of December 31, 2022 were as follows based on the terms of the debt at that date:


$ in thousands
2023	$	68,273
2024	17,020
2025	—
2026	72,200
2027	—
Total	$	157,493

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
REVENUE:
Revenues	$ 89,979	$ 97,325
OPERATING COSTS AND EXPENSES:
Selling, general and administrative	36,946	23,989
Depreciation and amortization	35,136	8,474
Gain on sale of assets	(1,780)	0
Impairment of long-lived assets	176,307	0
Remeasurement of environmental liability	16,694	3,688
Total operating costs and expenses	323,142	64,541
Operating (loss) income from operations	(233,163)	32,784
OTHER INCOME (EXPENSE), NET:
Interest expense, net	(21,575)	(3,689)
Interest expense - related party	0	(22)
(Loss) gain on sale of digital assets	(15)	275
Other income, net	14	153
Total other expense, net	(21,576)	(3,283)
(Loss) income from continuing operations before taxes	(254,739)	29,501
Provision for income taxes	15,002	7,901
Net (loss) income from continuing operations	(269,741)	21,600
Loss from discontinued operations, net of tax	(1,327)	(66,080)
Net loss	$ (271,068)	$ (44,480)
(Loss) earnings per basic share:
(Loss) earnings per basic share from continuing operations (in dollars per share)	$ (6.37)	$ 0.65
Loss per basic share from discontinued operations (in dollars per share)	(0.03)	(2.06)
(Loss) earnings per basic share (in dollars per share)	(6.40)	(1.41)
(Loss) earnings per diluted share:
(Loss) earnings per diluted share from continuing operations (in dollars per share)	(6.37)	0.57
Loss per diluted share from discontinued operations (in dollars per share)	(0.03)	(1.80)
(Loss) earnings per diluted share (in dollars per share)	$ (6.40)	$ (1.23)
Average Shares Outstanding
Basic (in shares)	42,373,000	31,995,000
Diluted (in shares)	42,373,000	36,635,000
Cryptocurrency datacenter
REVENUE:
Revenues	$ 73,809	$ 87,897
OPERATING COSTS AND EXPENSES:
Cost of revenue	45,933	19,159
Power and capacity
REVENUE:
Revenues	16,170	9,428
OPERATING COSTS AND EXPENSES:
Cost of revenue	$ 13,906	$ 9,231

COMMITMENTS AND CONTINGENCIES (Details)		1 Months Ended	12 Months Ended
COMMITMENTS AND CONTINGENCIES (Details)	Feb. 21, 2023 USD ($)	Sep. 30, 2020 USD ($) dth	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Recorded legal liability			$ 500,000
Legal contingency receivable			$ 250,000
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]			Environmental liabilities
Environmental liabilities			$ 27,400,000	$ 11,306,000
Environmental liability related to landfill, period			30 years
Annual inflation rate on environmental liability related to landfill			3.00%
Purchase commitment, energy volume required per day (in dekatherm) \| dth		15,000,000
Purchase commitment per month		$ 200,000
Purchase commitment, termination notice period		12 months
Purchase commitment period		10 years
Subsequent Event
Loss Contingencies [Line Items]
Settlement amount	$ 500,000
Amount paid by insurance agent	250,000
Coal ash impoundment
Loss Contingencies [Line Items]
Environmental liability			$ 17,500,000	2,700,000
Increase in coal combustion residual liabilities due to closure of a coal ash pond			14,800,000
Environmental liabilities			10,500,000	$ 8,600,000
Coal ash impoundment \| Selling, General and Administrative Expenses
Loss Contingencies [Line Items]
Environmental obligations			$ 1,900,000

DEBT - Narrative (Details)							12 Months Ended
DEBT - Narrative (Details)	Jan. 30, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Dec. 20, 2022 USD ($)	Aug. 10, 2022 USD ($) renewal_option	Mar. 21, 2022 USD ($)	Mar. 18, 2022 USD ($) renewal_option	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Interest expense							$ (21,600,000)	$ (3,700,000)
Debt outstanding		$ 157,493,000					157,493,000
Amended principal amount				$ 16,400,000
Percentage of proceeds received from sale of stock to be used to repay debt				65.00%
Notional value							157,500,000	100,500,000
Fair value of debt		88,500,000					88,500,000	97,500,000
Greenidge And Noteholder
Debt Instrument [Line Items]
Interest rate				7.50%
Secured Promissory Note
Debt Instrument [Line Items]
Interest rate bearing						6.00%
Aggregate principal amount						$ 26,500,000
Number of renewal options \| renewal_option				4		5
Renewal term				30 days		30 days
Secured Debt \| Secured Promissory Note
Debt Instrument [Line Items]
Principal and interest amount due			$ 1,500,000			$ 1,500,000
Secured Debt \| Secured Promissory Note \| Subsequent Event
Debt Instrument [Line Items]
Principal and interest amount due	$ 0
Mandatory monthly payments, percentage of net proceeds of sales of equity	15.00%
Revised principal and interest payment, triggered once specified debt has been prepaid	$ 400,000
Aggregate debt to be prepaid to reduce periodic payment	6,000,000
Amendment fee, paid-in-kind	$ 1,000,000
Amendment fee, paid-in-kind, price per share (in dollars per share) \| $ / shares	$ 0.75
Purchase of stock by counterparty	$ 1,000,000
Purchase of stock by counterparty, price per share (in dollars per share) \| $ / shares	$ 0.75
Proceeds from sale of stock to counterparty to paydown debt	$ 1,900,000
Short-term debt after paydown of debt	9,000,000
Secured Debt \| Secured Promissory Note \| Subsequent Event \| Minimum
Debt Instrument [Line Items]
Proceeds from sale of real estate property to paydown debt	6,000,000
Secured Debt \| Secured Promissory Note \| Subsequent Event \| Maximum
Debt Instrument [Line Items]
Proceeds from sale of real estate property to paydown debt	7,000,000
Master Equipment Finance Agreement
Debt Instrument [Line Items]
Borrowed amount partially funded		17,000,000			$ 54,000,000		17,000,000
Debt term					25 months
Equipment Finance Agreement
Debt Instrument [Line Items]
Unamortized discounts and debt issuance costs		5,747,000					$ 5,747,000	$ 5,667,000
Equipment Finance Agreement \| Equipment Note L
Debt Instrument [Line Items]
Principal and interest amount due		$ 1,000,000
Debt instrument, interest rate, stated percentage		13.00%					13.00%
Aggregate principal amount		$ 81,375,000					$ 81,375,000
Equipment Finance Agreement \| Secured Promissory Note
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		7.50%					7.50%
Aggregate principal amount		$ 26,500,000					$ 26,500,000
Secured Debt \| Master Equipment Finance Agreement
Debt Instrument [Line Items]
Debt outstanding		$ 75,800,000					$ 75,800,000
Secured Debt \| Master Equipment Finance Agreement \| Subsequent Event
Debt Instrument [Line Items]
Debt outstanding	17,300,000
Extinguishment of debt	$ 58,500,000
Debt instrument, interest rate, stated percentage	15.00%
Cash balance (in excess)	$ 10,000,000
Debt, voluntary, paid-in-kind	$ 10,200,000
Senior Notes \| Senior Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		8.50%					8.50%	8.50%
Aggregate principal amount		$ 72,200,000					$ 72,200,000
Debt sold								$ 72,200,000
Master Equipment Financing Agreement
Debt Instrument [Line Items]
Aggregate principal amount loan					$ 81,000,000
Interest rate bearing					13.00%
Debt Instrument, Redemption, Period One \| Senior Notes \| Senior Unsecured Notes
Debt Instrument [Line Items]
Redemption percentage								102.00%
Debt Instrument, Redemption, Period Two \| Senior Notes \| Senior Unsecured Notes
Debt Instrument [Line Items]
Redemption percentage								101.00%
Debt Instrument, Redemption, Period Three \| Senior Notes \| Senior Unsecured Notes
Debt Instrument [Line Items]
Redemption percentage								100.00%
Debt Instrument, Redemption, Period Four \| Senior Notes \| Senior Unsecured Notes
Debt Instrument [Line Items]
Redemption percentage								100.50%

DISCONTINUED OPERATIONS - Narrative (Details) - USD ($)		12 Months Ended
DISCONTINUED OPERATIONS - Narrative (Details) - USD ($)	Jan. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Sep. 13, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Intangible assets (including goodwill)				$ 0
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Effective income tax rate from discontinuted operations		16.50%	10.20%
Support Com \| Discontinued Operations, Disposed of by Sale \| Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of business	$ 2,600,000
Support Com \| Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill impairment charge		$ 3,062,000	$ 42,307,000
Impairment charge		2,610,000
Support Com \| Discontinued Operations, Held-for-sale \| Customer relationships
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge		2,246,000
Support Com \| Discontinued Operations, Held-for-sale \| Tradename
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge		$ 364,000

SUPPLEMENTAL BALANCE SHEET AND CASH FLOW INFORMATION (Tables)

12 Months Ended

Dec. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Additional Prepaid Expenses

The following table provides additional details of Prepaid expenses and other assets:


	As of December 31,
$ in thousands	2022		2021
Prepaid insurance	$	3,822	$	7,013
Electric deposits	1,400		—
Other prepaid expenses	1,044		471
Prepaid expenses and other assets	$	6,266	$	7,484

Noncash Investing and Financing Activities

The Company had the following noncash investing and financing activities:


	For the Year Ended December 31,
$ in thousands	2022		2021
Shares issued to Support.com shareholders upon Merger (Notes 3 and 7)	$	—	$	93,885
Stock issued to purchase miners	$	—	$	991
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock (Note 7)	$	—	$	72,048
Issuance of shares for investor fee associated with successful completion of Merger (Notes 3 and 7)	$	—	$	17,826
Issuance of warrants to advisor in connection with completion of Merger (Note 3 and 7)	$	—	$	8,779

Property and equipment purchases in accounts payable	$	6,676	$	2,769

Supplemental Cash Flow Information

The following table provides supplemental cash flow information for cash paid for interest and income taxes:


	For the Year Ended December 31,
$ in thousands	2022		2021
Cash paid for interest	$	16,463	$	2,385
Cash paid for taxes	$	2,344	$	80

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Summary of Property and Equipment, Net


Asset Class			Estimated Useful Lives
Plant infrastructure			10 years
Miners			3 years
Miner facility infrastructure			10 years

Equipment			5 years
Software			3 years

Property and equipment, net consisted of the following at December 31, 2022 and 2021:


$ in thousands	Estimated Useful Lives	December 31, 2022		December 31, 2021
Plant infrastructure	10 years	$	—	$	34,725
Miners	3 years	81,979		48,121
Miner facility infrastructure	10 years	14,203		15,143
Land	N/A	8,460		8,460
Equipment	5 years	45		226
Software	3 years	—		186
Coal ash impoundment	4 years	—		2,410
Construction in process	N/A	18,349		25,856
Miner deposits	N/A	7,381		98,110
		130,417		233,237
Less: Accumulated depreciation		—		(17,225)
		$	130,417	$	216,012

DEBT - Equipment Financing Agreements (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Mar. 18, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Less: Current portion	$ (67,161)		$ (19,577)
Long-term debt, net of current portion and deferred financing fees	84,585		75,251
Secured Promissory Note
Debt Instrument [Line Items]
Initial Financing		$ 26,500
Equipment Finance Agreement
Debt Instrument [Line Items]
Total Debt	157,493		100,495
Less: Debt discount and issue costs	(5,747)		(5,667)
Total debt at book value	151,746		94,828
Less: Current portion	(67,161)		(19,577)
Long-term debt, net of current portion and deferred financing fees	$ 84,585		75,251
Equipment Finance Agreement \| Secured Promissory Note
Debt Instrument [Line Items]
Interest Rate	7.50%
Initial Financing	$ 26,500
Total Debt	$ 10,430		0
Equipment Finance Agreement \| Miner Equipment Note A
Debt Instrument [Line Items]
Interest Rate	17.00%
Initial Financing	$ 4,482
Total Debt	$ 0		1,245
Equipment Finance Agreement \| Miner Equipment Note B
Debt Instrument [Line Items]
Interest Rate	17.00%
Initial Financing	$ 428
Total Debt	$ 0		95
Equipment Finance Agreement \| Miner Equipment Note C
Debt Instrument [Line Items]
Interest Rate	17.00%
Initial Financing	$ 2,229
Total Debt	$ 0		1,362
Equipment Finance Agreement \| Miner Equipment Note D
Debt Instrument [Line Items]
Interest Rate	17.00%
Initial Financing	$ 4,012
Total Debt	$ 0		2,674
Equipment Finance Agreement \| Miner Equipment Note E And H
Debt Instrument [Line Items]
Interest Rate	15.00%
Initial Financing	$ 15,724
Total Debt	$ 10,478		15,513
Equipment Finance Agreement \| Miner Equipment Note I
Debt Instrument [Line Items]
Interest Rate	17.00%
Initial Financing	$ 4,457
Total Debt	$ 495		3,468
Equipment Finance Agreement \| Miner Equipment Note J
Debt Instrument [Line Items]
Interest Rate	17.00%
Initial Financing	$ 2,717
Total Debt	$ 0		1,962
Equipment Finance Agreement \| Miner Equipment Note K
Debt Instrument [Line Items]
Interest Rate	17.00%
Initial Financing	$ 2,223
Total Debt	$ 0		1,976
Equipment Finance Agreement \| Equipment Note L
Debt Instrument [Line Items]
Interest Rate	13.00%
Initial Financing	$ 81,375
Total Debt	$ 63,890		$ 0
Senior Notes \| Senior Unsecured Notes
Debt Instrument [Line Items]
Interest Rate	8.50%		8.50%
Initial Financing	$ 72,200
Total Debt	$ 72,200		$ 72,200

EQUITY BASED COMPENSATION - Weighted Average Assumptions Relating to the Valuation of Stock Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]
Weighted average exercise price per share, granted (in dollars per share)	$ 1.32	$ 6.07
Expected volatility	89.00%	35.00%
Expected term (years)	6 years	4 years
Risk-free interest rate	4.10%	0.50%
Expected dividend yield	0.00%	0.00%

EARNINGS PER SHARE - Narrative (Details) - shares	12 Months Ended
EARNINGS PER SHARE - Narrative (Details) - shares	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share Basic [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)	0
Common stock, outstanding (in shares)	46,252,779	40,865,336
Restricted Stock Units (RSUs)
Earnings Per Share Basic [Line Items]
Shares outstanding (in shares)	247,286
Common Stock Options
Earnings Per Share Basic [Line Items]
Shares outstanding (in shares)	3,641,850
Common Stock
Earnings Per Share Basic [Line Items]
Common stock, outstanding (in shares)			0

DISCONTINUED OPERATIONS - Financial Results (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of tax	$ (1,327)	$ (66,080)
Support Com \| Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	31,464	9,952
Cost of revenue - services and other (exclusive of depreciation and amortization)	(14,791)	(5,430)
Depreciation and amortization	(1,298)	(381)
Selling, general and administrative	(9,852)	(3,352)
Merger and other costs	(1,343)	(32,087)
Goodwill and intangibles asset impairment charge	(5,672)	(42,307)
Other income, net	353	32
Pretax loss of discontinued operations	(1,139)	(73,573)
Income tax provision (benefit)	188	(7,493)
Loss from discontinued operations, net of tax	$ (1,327)	$ (66,080)

DISCONTINUED OPERATIONS - Major Classes of Assets and Liabilities to be Transferred (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets:
Current assets held for sale	$ 6,473	$ 6,949
Long-term assets held for sale	0	7,942
Liabilities:
Current liabilities held for sale	3,974	4,003
Long-term liabilities held for sale	0	368
Support Com \| Discontinued Operations, Held-for-sale
Assets:
Accounts receivable	3,996	5,287
Prepaid expenses and other current assets	1,253	1,662
Current assets held for sale	5,249	6,949
Property and equipment	743	1,079
Intangible assets, net	0	3,537	$ 0
Goodwill	0	3,062	$ 0
Other assets	481	264
Long-term assets held for sale	1,224	7,942
Assets held for sale	6,473	14,891
Liabilities:
Accounts payable	191	174
Accrued expenses	3,351	3,692
Income taxes payable	0	137
Current liabilities held for sale	3,542	4,003
Other long-term liabilities	432	368
Long-term liabilities held for sale	432	368
Liabilities held for sale	$ 3,974	$ 4,371