Greenidge Generation (GREE) 10-Q 16 May 22 2022 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2022	May 12, 2022
Document Information [Line Items]
Entity Registrant Name	Greenidge Generation Holdings Inc.
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Fiscal Year Focus	2022
Document Period End Date	Mar. 31, 2022
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001844971
Document Transition Report	false
Entity File Number	001-40808
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	86-1746728
Entity Address, Address Line One	135 Rennell Drive
Entity Address, City or Town	3rd FloorFairfield
Entity Address, State or Province	CT
Entity Address, Postal Zip Code	06890
City Area Code	203
Local Phone Number	718-5960
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 Shell Company	false
Entity Ex Transition Period	false
Document Fiscal Period Focus	Q1
Common Class A [Member]
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		12,838,861
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		28,526,372
8.50% Senior Notes due 2026 [Member]
Document Information [Line Items]
Title of 12(b) Security	8.50% Senior Notes due 2026
Trading Symbol	GREEL
Security Exchange Name	NASDAQ

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 96,453	$ 82,599
Short term investments		496
Digital assets	393	476
Accounts receivable	5,569	5,524
Prepaid expenses	10,286	9,146
Emissions and carbon offset credits	1,025	2,361
Total current assets	113,726	100,602
LONG-TERM ASSETS:
Property and equipment, net	292,051	217,091
Right-of-use assets	1,375	1,472
Intangible assets, net	3,305	3,537
Goodwill	3,062	3,062
Deferred tax assets	16,846	15,058
Other long-term assets	989	445
Total assets	431,354	341,267
CURRENT LIABILITIES:
Accounts payable	14,823	5,923
Accrued emissions expense	2,637	2,634
Accrued expenses	11,676	10,375
Income taxes payable	3,879	2,481
Long-term debt, current portion	66,729	19,577
Lease obligation, current portion	500	736
Total current liabilities	100,244	41,726
LONG-TERM LIABILITIES:
Long-term debt, net of current portion and deferred financing fees	103,191	75,251
Lease obligation, net of current portion	195	193
Asset retirement obligations	2,691	2,691
Environmental liability	8,615	8,615
Other long-term liabilities	366	368
Total liabilities	215,302	128,844
COMMITMENTS AND CONTINGENCIES (NOTE 13)
STOCKHOLDERS' EQUITY:
Preferred stock
Common stock	4	4
Additional paid-in capital	285,905	281,815
Cumulative translation adjustment	(32)
Accumulated deficit	(69,825)	(69,396)
Total stockholders' equity	216,052	212,423
Total liabilities and stockholders' equity	$ 431,354	$ 341,267

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Preferred stock, Par or stated value per share	$ 0.0001	$ 0.0001
Preferred stock, Shares authorized	20,000,000	20,000,000
Preferred stock, Shares outstanding	0	0
Common stock, Par or stated value per share	$ 0.0001	$ 0.0001
Common stock, Shares authorized	3,000,000,000	3,000,000,000
Common stock, Shares issued	41,363,271	40,865,336
Common stock, Shares outstanding	41,363,271	40,865,336

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Operations And Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
REVENUE:
Total revenue	$ 37,655	$ 11,063
OPERATING COSTS AND EXPENSES
Selling, general, and administrative	14,392	3,229
Merger and other costs	(213)	(105)
Depreciation and amortization	3,978	1,261
Total operating costs and expenses	35,133	9,178
Income from operations	2,522	1,885
OTHER INCOME (EXPENSE), NET:
Interest expense, net	(3,353)	(166)
Interest expense—related party	0	(22)
(Loss) gain on sale of digital assets	(5)	295
Other income, net	39	19
Total other (expense) income, net	(3,319)	126
(LOSS) INCOME BEFORE INCOME TAXES	(797)	2,011
(Benefit) provision for income taxes	(368)	732
NET (LOSS) INCOME	(429)	1,279
Foreign currency translation adjustment	(32)	0
COMPREHENSIVE (LOSS) INCOME	$ (461)	$ 1,279
(Loss) earnings per share:
Basic	$ (0.01)	$ 0.02
Diluted	$ (0.01)	$ 0.02
Cryptocurrency Mining [Member]
REVENUE:
Total revenue	$ 23,232	$ 8,997
OPERATING COSTS AND EXPENSES
Cost of revenue	8,456	2,574
Power and Capacity [Member]
REVENUE:
Total revenue	5,923	2,066
OPERATING COSTS AND EXPENSES
Cost of revenue	4,023	2,009
Services and Other [Member]
REVENUE:
Total revenue	8,500	0
OPERATING COSTS AND EXPENSES
Cost of revenue	$ 4,071	$ 0

Condensed Consolidated Statem_2

Condensed Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid - In Capital [Member]	Common Units [Member]	Preferred Units [Member]	Senior Priority Units [Member]	Total Members' Capital [Member]	Accumulated Deficit [Member]	Cumulative Translation Adjustment [Member]
Beginning Balance at Dec. 31, 2020	$ 44,360								$ (24,916)
Members' Capital, Beginning Balance at Dec. 31, 2020						$ 39,074	$ 30,202	$ 69,276
Members' Capital, Common Units, Beginning Balance (in units) at Dec. 31, 2020					750
Members' Capital, Preferred Units, Beginning Balance (in units) at Dec. 31, 2020						39,228
Members' Capital, Senior Priority Units, Beginning Balance (in units) at Dec. 31, 2020							10,000
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock (Note 9)	3,615		$ 3	$ 72,888		$ (39,074)	$ (30,202)	$ (69,276)
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock (Note 9) (in shares/units)			26,800,300			(39,228)	(10,000)
Contribution of GGH Common Units for Greenidge class B common stock (Note 9)					$ (750)
Contribution of GGH Common Units for Greenidge class B common stock (Note 9) (in shares/units)			1,199,700
Proceeds from issuance of preferred stock, net of stock issuance costs	37,112	$ 1		37,112
Proceeds from issuance of preferred stock, net of stock issuance costs (in shares)		1,620,000
Stock-based compensation expense	656			656
Proceeds from stock options exercised	1,000			1,000
Proceeds from stock options exercised (in shares)			160,000
Stock issued to purchase miners	991			991
Stock issued to purchase miners (in shares)			160,000
Net (loss) income	1,279								1,279
Ending Balance at Mar. 31, 2021	89,014	$ 1	$ 3	112,647					(23,637)
Ending Balance (in shares) at Mar. 31, 2021		1,620,000	28,320,000
Beginning Balance at Dec. 31, 2021	212,423		$ 4	281,815					(69,396)
Beginning Balance (in shares) at Dec. 31, 2021			40,865,336
Stock-based compensation expense	362			362
Issuance of shares, net of issuance costs	3,791			3,791
Issuance of shares, net of issuance costs, Shares			415,000
Restricted shares award issuance, net of withholdings	(65)			(65)
Restricted shares award issuance, net of withholdings, Shares			82,601
Proceeds from stock options exercised	2			2
Proceeds from stock options exercised (in shares)			334
Foreign currency translation adjustment	(32)									$ (32)
Net (loss) income	(429)								(429)
Ending Balance at Mar. 31, 2022	$ 216,052		$ 4	$ 285,905					$ (69,825)	$ (32)
Ending Balance (in shares) at Mar. 31, 2022			41,363,271

Condensed Consolidated Statem_3

Condensed Consolidated Statements Of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Payment of stock issuance costs	$ 147
Preferred Stock
Payment of stock issuance costs		$ 3,387

Condensed Consolidated Statem_4

Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOW FROM OPERATING ACTIVITIES:
Net (loss) income	$ (429)	$ 1,279
Adjustments to reconcile net (loss) income to net cash flow from operating activities:
Depreciation and amortization	3,978	1,261
Deferred income taxes	(1,788)	482
Amortization of debt issuance costs	424	0
Accretion of asset retirement obligations	0	33
Stock-based compensation expense	362	656
Changes in operating assets and liabilities:
Accounts receivable	(45)	283
Emissions credits/carbon offsets	1,336	1,336
Prepaids and other assets	(1,608)	(704)
Accounts payable	1,398	(770)
Accrued emissions	3	(1,670)
Accrued expenses	1,301	51
Income taxes payable	1,398	250
Net cash flow provided by operating activities	6,330	2,487
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of and deposits for property and equipment	(71,135)	(5,667)
Proceeds from sale of marketable securities	496	0
Net cash flow used in investing activities	(70,639)	(5,667)
CASH FLOW FROM FINANCING ACTIVITIES:
Proceeds from issuance of  preferred stock, net of issuance costs		37,112
Proceeds from issuance of common stock, net of issuance costs	3,791
Proceeds from stock options exercised	2	1,000
Restricted stock unit awards settled in cash for taxes	(65)
Proceeds from debt, net of issuance costs	80,371
Principal payments on debt	(5,702)	(818)
Repayments of finance lease obligations	(234)
Net cash flow provided by financing activities	78,163	37,294
CHANGE IN CASH AND CASH EQUIVALENTS	13,854	34,114
CASH AND CASH EQUIVALENTS—beginning of year	82,599	5,052
CASH AND CASH EQUIVALENTS—end of year	$ 96,453	$ 39,166

ORGANIZATION AND DESCRIPTION OF

ORGANIZATION AND DESCRIPTION OF BUSINESS	3 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	1. ORGANIZATION AND DESCRIPTION OF BUSINESS Greenidge Generation Holdings Inc. (“Greenidge”) and its subsidiaries (collectively, the “Company”) own and operate 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 is then exchanged for U.S. dollars. The Company owns and operates a 106 megawatt ("MW") 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 and has been 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). Prior to the Merger, Greenidge's class A common stock ("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 The 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 operates as a wholly-owned subsidiary and a segment of Greenidge.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Presentation of Condensed Consolidated Financial Statements In the opinion of Greenidge management, the accompanying condensed consolidated The accompanying condensed consolidated financial statements should be read in conjunction with the notes to the consolidated financial statements of the Company in Greenidge's 2021 Annual Report on Form 10-K. There have been no material changes to the Company’s significant accounting policies during 2022. Reclassifications Certain prior year amounts have been reclassified to conform to the current year's presentation. 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 has elected to adopt this pronouncement following the effective date for private companies beginning with periods beginning after December 15, 2021. The adoption of this standard did not materially impact the Company's condensed consolidated financial statements.

MERGER WITH SUPPORT.COM

MERGER WITH SUPPORT.COM	3 Months Ended
	Mar. 31, 2022
Business Combinations [Abstract]
Merger with Support.com	3. 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 has been 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. Results of Support.com Operations Since the Merger For the three months ended March 31, 2022, the acquired Support.com business contributed $ 8.5 million in revenue and $ 1.5 million of operating income, which includes approximately $ 0.2 million of amortization expenses of acquired intangible assets. Supplemental Pro Forma Financial Information In accordance with ASC 805, the following supplemental unaudited pro forma information gives effect to the Merger as if it had occurred on January 1, 2021. 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. Three Months Ended $ in thousands March 31, 2021 Revenues $ 20,694 Net loss $ ( 778 ) The pro forma results for three months ended March 31, 2021 include $ 1.6 million of transaction costs for both Greenidge and Support.com ($ 1.2 million a fter 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.

SEGMENT INFORMATION

SEGMENT INFORMATION	3 Months Ended
	Mar. 31, 2022
Segment Reporting [Abstract]
Segment Information	. SEGMENT INFORMATION Effective September 14, 2021, following the completion of the Merger (see Notes 1 and 3), Support.com began operating within the Company as a separate operating and reporting segment; therefore, Greenidge has two operating and reporting segments since the Merger: (i) Cryptocurrency Datacenter and Power Generation and (ii) Support Services. The Cryptocurrency Datacenter and Power Generation segment 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 segment also sells 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. The Cryptocurrency Datacenter and Power Generation segment operates in the United States. The Support Services segment provides solutions and technical programs to customers delivered by home-based employees. The Support Services segment provides customer service, sales support, and technical support primarily to large corporations, businesses and professional services organizations. The Support Services segment also earns revenues for end-user software products provided through direct customer downloads and sales via partners. The Support Services segment operates primarily in the United States, but also has employees located in Philippines, India, Mexico, Colombia and Canada, including those staff providing support services. The Company’s measure of profit or loss for segment reporting is income (loss) before income taxes, interest and depreciation and amortization and adjusted for share based compensation and excluding items not indicative of ongoing business trends (referred to as “segment Adjusted EBITDA”). This is the measure used by the Company's Chief Operating Decision Maker to assess performance and allocate resources. The table below presents information about reportable segments for the three months ended March 31, 2022 and 2021, respectively: Three Months Ended March 31, $ in thousands 2022 2021 Revenues: Cryptocurrency Datacenter and Power Generation $ 29,155 $ 11,063 Support Services 8,500 - Total Revenues $ 37,655 $ 11,063 Segment Adjusted EBITDA Cryptocurrency Datacenter and Power Generation $ 7,344 $ 4,221 Support Services 1,869 - Total Segments Adjusted EBITDA $ 9,213 $ 4,221 In addition, the table below provides a reconciliation of the total of the segments Adjusted EBITDA to the consolidated (loss) income before income taxes: Three Months Ended March 31, $ in thousands 2022 2021 Total Segments Adjusted EBITDA $ 9,213 $ 4,221 Depreciation and amortization ( 3,978 ) ( 1,261 ) Stock-based compensation ( 362 ) ( 656 ) Merger and other costs ( 213 ) ( 105 ) Expansion costs ( 2,104 ) - Interest expense, net ( 3,353 ) ( 188 ) Consolidated (loss) income before income taxes $ ( 797 ) $ 2,011

PROPERTY AND EQUIPMENT

PROPERTY AND EQUIPMENT	3 Months Ended
	Mar. 31, 2022
Property, Plant and Equipment [Abstract]
Property and Equipment	5. PROPERTY AND EQUIPMENT Property and equipment, net consisted of the following at March 31, 2022 and December 31, 2021: $ in thousands Estimated Useful March 31, 2022 December 31, 2021 Plant infrastructure 15 - 39 years $ 34,976 $ 34,725 Miners 5 years 64,138 48,121 Miner facility infrastructure 15 years 15,957 15,143 Land N/A 13,460 8,460 Equipment 5 years 961 1,660 Software 3 years 636 636 Coal ash impoundment 4 years 2,410 2,410 Construction in process N/A 45,195 25,856 Miner deposits N/A 135,327 98,110 313,060 235,121 Less: Accumulated depreciation ( 21,009 ) ( 18,030 ) $ 292,051 $ 217,091 Total depreciation expense was $ 3.7 million and $ 1.3 million for the three months ended March 31, 2022 and 2021, respectively.

INTANGIBLE ASSETS

INTANGIBLE ASSETS	3 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	6. INTANGIBLE ASSETS The following is a summary of finite-lived intangible assets: $ in thousands Intangible Assets Accumulated Amortization Intangible Assets, Net Balance at December 31, 2021 $ 3,810 $ ( 273 ) $ 3,537 Amortization expense: Customer relationships - ( 207 ) ( 207 ) Tradename - ( 25 ) ( 25 ) Balance at March 31, 2022 $ 3,810 $ ( 505 ) $ 3,305 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 intangible assets.

Debt

Debt	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Notes Payable	. DEBT The Company has entered into equipment finance agreements that are secured by the purchased miner equipment. These agreements generally require monthly payments of principal, interest and a risk premium fee. The following table provides information on the equipment financing agreements: $ in thousands Balance as of: Note Loan Date Maturity Date Interest Initial March 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 24 95 C March 2021 November 2022 17.0 % 2,229 991 1,362 D April 2021 December 2022 17.0 % 4,012 2,006 2,674 E - H May 2021 October 2023 15.0 % 15,724 16,089 15,223 I July 2021 January 2023 17.0 % 4,457 2,724 3,468 J July 2021 March 2023 17.0 % 2,717 1,509 1,962 K October 2021 June 2023 17.0 % 2,223 1,606 1,976 L March 2022 April 2024 13.0 % 54,425 52,706 - Bonds Payable October 2021 October 2026 8.5 % 55,200 51,961 51,843 Bonds Payable December 2021 October 2026 8.5 % 17,000 15,053 14,980 Secured Promissory Note March 2022 July 2022 / 6.0 % 26,500 25,251 - 169,920 94,828 Less: Current portion ( 66,729 ) ( 19,577 ) $ 103,191 $ 75,251 The Company incurred interest expense of $ 3.4 million and $ 0.2 million during the three months ended March 31, 2022 and 2021, respectively, under the terms of these financings. 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 and will continue to be funded 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 partially funded loan schedules bear interest at a rate of 13 % per annum and have terms of twenty-five months. Certain loan schedules are interest-only for a specified period and otherwise payments on loan schedules include both an interest and principal payment. Pursuant to the terms of the NYDIG Financing Agreement, the Borrowers and with certain exceptions, the Company, will be subject to certain covenants and restrictive provisions which will, among other things: limit the Borrowers’ ability to incur additional indebtedness for borrowed money; limit additional liens on the collateral or the equity interests of any of the Borrowers; limit consolidations or mergers including the Borrowers or the Company unless such would not constitute a Change in Control (as defined therein); limit disposing of the collateral or any portion of the collateral with certain exceptions; limit the Borrowers’ ability to make certain restricted payments and investments; and limit the ability to create 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 are subject to customary and usual exceptions and baskets. The loans under the NYDIG Financing Agreement cannot be voluntarily partially prepaid, but may be prepaid in whole subject to a make-whole calculation. The NYDIG Financing Agreement is denoted in the table above as "Equipment Financings: L." 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 bears interest at a rate of 6 % per annum and matures 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) has 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 will be 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. Fair Value Disclosure 178.4 million and $ 169.9 million, respectively, at March 31, 2022. The notional value does not include unamortized discounts and debt issuance costs of $ 8.5 million at March 31, 2022. The estimated fair value of the Bonds Payable, representing the fair value of our 8.50 % senior secured notes due 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 March 31, 2022 were as follows: $ in thousands Remainder of 2022 $ 58,116 2023 36,325 2024 11,739 2025 - 2026 72,200 Total $ 178,380

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	3 Months Ended
	Mar. 31, 2022
Related Party Transactions [Abstract]
Related Party Transactions	. RELATED PARTY TRANSACTIONS Letters of Credit The Company's controlling stockholder, Atlas Holdings LLC ("Atlas"), obtained a letter of credit from a financial institution in the amount of $ 5.0 million at March 31, 2022, payable to the NYSDEC. This letter of credit guarantees the current value of the Company’s environmental liability. Atlas also obtained a letter of credit from a financial institution in the amount of $ 3.6 million at March 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 (see Note 13). 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.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	3 Months Ended
	Mar. 31, 2022
Stockholders' Equity Note [Abstract]
Stockholders Equity	9. STOCKHOLDERS' EQUITY 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. Under the applicable rules of The Nasdaq Stock Market LLC ("Nasdaq"), in no event may Greenidge issue to the Investor under the 2021 Purchase Agreement more than 19.99 % of the total number of combined shares of its class A common stock and class B common stock (together, the "common stock") that were outstanding immediately prior to the execution of the 2021 Purchase Agreement (the “Exchange Cap”), unless Greenidge obtains stockholder approval to issue shares in excess of the Exchange Cap in accordance with applicable Nasdaq rules. The per share purchase price for the shares of class A common stock that Greenidge elects to sell to the Investor pursuant to the 2021 Purchase Agreement will be determined by reference to the volume weighted average price of class A common stock during the applicable purchase date on which Greenidge has timely delivered written notice to the Investor directing it to purchase shares under the 2021 Purchase Agreement, less a fixed 5 % discount, which shall be increased to a fixed 6 % discount at such time that the Company receives 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 will have no obligation to purchase shares pursuant to the 2021 Purchase Agreement to the extent that such purchase would cause the Investor to own more than 4.99 % of the Company’s issued and outstanding shares of class A common stock. In connection with the 2021 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 the class A common stock to be issued under the 2021 Purchase Agreement. The registration statement became effective on October 6, 2021 relating to the resale of 3,500,000 shares of the class A common stock in connection with the 2021 Purchase Agreement. During the three months ended March 31, 2022, the Company issued 415,000 class A common shares pursuant to the 2021 Purchase Agreement for an aggregate sales price of $ 3.9 million, net of discounts.

EQUITY BASED COMPENSATION

EQUITY BASED COMPENSATION	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Equity Based Compensation	. EQUITY BASED COMPENSATION In February 2021, Greenidge adopted an equity incentive plan and reserved 3,831,112 shares of class A common stock for issuance under the plan (the “2021 Equity Plan”). Restricted Common Stock Unit Awards During the three months ended March 31, 2022, the Company awarded 5,335 restricted common stock units (“RSUs”) under the 2021 Equity Plan to employees, which are generally eligible to vest over a three-year period. The Company’s unvested RSU awards activity for the three months ended March 31, 2022 is summarized below: Weighted Average Grant Date RSUs Fair Value Unvested at December 31, 2021 516,987 $ 6.80 Granted 5,335 15.32 Vested ( 90,704 ) 6.25 Unvested at March 31, 2022 431,618 $ 7.01 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 three months ended March 31, 2022 , the fair market value of the awards granted totaled $ 0.1 million, and as of March 31, 2022, there was approximately $ 2.4 million of total unrecognized compensation cost related to unvested restricted stock rights, which is expected to be recognized over a remaining weighted-average vesting period of approximately 2.0 years. Common Stock Options The Company’s common stock options activity for the three months ended March 31, 2022 is summarized below: Weighted Average Weighted Average Remaining Aggregate Exercise Price Contractual Life Intrinsic Options Per Share (in years) Value Outstanding at December 31, 2021 583,080 $ 6.01 9.2 $ 5,854 Granted - - Exercised ( 334 ) 6.25 Forfeited ( 2,888 ) 6.25 Outstanding at March 31, 2022 579,858 $ 6.01 8.9 $ 1,430 Exercisable as of March 31, 2022 439,225 $ 5.86 8.9 $ 1,150 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. As of March 31, 2022, there was approximately $ 0.3 million of total unrecognized compensation cost related to unvested common stock options, which is expected to be recognized over a remaining weighted-average vesting period of approximately 1.4 years. Stock-based Compensation The Company recognized stock-based compensation expense of $ 0.4 million and $ 0.7 million during the three months ended March 31, 2022 and 2021, respectively. Stock-based compensation expense is included in selling, general and administrative expenses in the accompanying unaudited condensed consolidated statements of operations and comprehensive (loss) income.

INCOME TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	. INCOME TAXES The income tax provision for interim periods is determined using an estimate of the annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter, the estimate of the annual effective tax rate is updated, and if the estimated effective tax rate changes, a cumulative adjustment is made. In addition, the effect of changes in enacted tax laws or rates or tax status is recognized in the interim period in which the change occurs. The Company's effective tax rate was 46.2 % and 36.4 % for the three months ended March 31, 2022 and 2021, respectively. The effective tax rate for the three months ended March 31, 2022 was different from the U.S. federal statutory rate of 21 % primarily due to state income taxes and tax benefits associated with stock-based compensation. The effective tax rate for the three months ended March 31, 2021 includes the recognition of a deferred tax liability caused by the reorganization from a limited liability company to a corporation during the first quarter of 2021. The Company continues to evaluate the realizability of its deferred tax assets on a quarterly basis and will adjust such amounts in light of changing facts and circumstances. In making such an assessment, management would consider all available positive and negative evidence, including the level of historical taxable income, future reversals of existing temporary differences, tax planning strategies, and projected future taxable income.

EARNINGS PER SHARE

EARNINGS PER SHARE	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Earnings Per Share	12. EARNINGS PER SHARE The Company calculates basic earnings 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 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. The following table sets forth a reconciliation of the numerator and denominator used to compute basic earnings and diluted per share of common stock. Three Months Ended March 31: $ in thousands, except per share amounts 2022 2021 Numerator Net (loss) income $ ( 429 ) $ 1,279 Less: Net income attributable to the member units before the reorganization - ( 647 ) Net (loss) income attributable to Greenidge $ ( 429 ) $ 632 Denominator Basic weighted average shares outstanding 41,058 28,139 Dilutive effect of equity awards - 8 Dilutive effect of convertible preferred stock - - Diluted weighted average shares outstanding 41,058 28,147 (Loss) earnings per share Basic $ ( 0.01 ) $ 0.02 Diluted $ ( 0.01 ) $ 0.02 For the three months ended March 31, 2021, Basic earnings per share is applicable only for the period from January 29, 2021 through March 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 condensed consolidated financial statements. For the three months ended March 31, 2022 , there was no impact of dilution from any of the outstanding 431,618 RSUs or 579,858 common stock options due to the net loss, since inclusion of any impact from these awards would be antidilutive. For the three months ended March 31, 2021, there was no impact of dilution from outstanding 616,920 RSUs or 330,744 common stock options, since inclusion of any impact from these awards would be antidilutive.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	13. 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 such legal proceedings or claims that it believes will have a material adverse effect on its business, financial condition or operating results. 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 As of March 31, 2022, the Company had entered into agreements to purchase miners totaling $ 197.0 million that required deposits of $ 135.3 million. The Company entered into agreements for committed secured financing on miners totaling $ 27.7 million that has not yet been funded. The Company entered into a contract with Empire in September 2020 that provides for the transportation to its pipeline of 15,000 dekatherms of natural gas per day, approximately $ 158 thousand 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.

CONCENTRATIONS

CONCENTRATIONS	3 Months Ended
	Mar. 31, 2022
Risks and Uncertainties [Abstract]
Concentrations	14. CONCENTRATIONS The Company has one power customer, NYISO, that accounted for 16 % and 19 % of its revenue for the three months ended March 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 on a daily basis. Revenue from one of the Company’s pool operator customers accounted for approximately 50 % of total revenue for the three months ended March 31, 2022. Revenue from a different pool operator customer accounted for approximately 12 % and 72 % of total revenue for the three months ended March 31, 2022 and 2021, respectively. The Support Services segment's largest customer accounted for approximately 16 % of the Company's consolidated revenue during the three months ended March 31, 2022 and also accounted for approximately 73 % and 67 % of the Company's consolidated accounts receivable balance at March 31, 2022 and December 31, 2021, respectively. Another customer of the Support Services segment accounted for 11 % of the receivable balance at December 31, 2021. The Company has one natural gas vendor that accounted for approximately 45 % and 59 % of cost of revenue for the three months ended March 31, 2022 and 2021, respectively.

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	3 Months Ended
	Mar. 31, 2022
Supplemental Cash Flow Information [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	15. SUPPLEMENTAL CASH FLOW INFORMATION Greenidge had the following noncash investing and financing activities: Three Months Ended March 31, $ in thousands 2022 2021 Property and equipment purchases financed with common stock $ - $ 991 Property and equipment purchases in accounts payable $ 10,271 $ 876 Contribution of GGH Preferred Units and Senior Priority Units for common stock $ - $ 69,276 Contribution of related party notes payable and accrued interest for common stock $ - $ 3,615

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	3 Months Ended
	Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Events	16. SUBSEQUENT EVENTS Subsequent events have been evaluated through May 16, 2022, the date at which the condensed 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 directly below. Equity Purchase Agreement with B. Riley Principal Capital, LLC In April 2022, Greenidge and the Investor terminated the 2021 Purchase Agreement and entered into a new Purchase Agreement. As disclosed in Note 9, Greenidge entered into the 2021 Purchase Agreement with the Investor whereby the Company had the right to sell to the Investor a certain amount of its class A common stock, subject to certain conditions and limitations, from time to time during the term of the 2021 Purchase Agreement. 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. 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, relating to the resale of 5,720,951 shares of Greenidge’s class A common stock in connection with the 2022 Purchase Agreement. From April 28, 2022 to May 16, 2022, we issued 15,000 shares of our class A common stock to the Investor pursuant to the Purchase Agreement for aggregate proceeds of approximately $0.1 million, net of discounts .

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Reclassifications	Reclassifications Certain prior year amounts have been reclassified to conform to the current year's presentation.
Recent Accounting Pronouncements, Adopted	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 has elected to adopt this pronouncement following the effective date for private companies beginning with periods beginning after December 15, 2021. The adoption of this standard did not materially impact the Company's condensed consolidated financial statements.

MERGER WITH SUPPORT.COM (Tables

MERGER WITH SUPPORT.COM (Tables)	3 Months Ended
	Mar. 31, 2022
Business Combinations [Abstract]
Summary of Supplemental Pro Forma Financial Information	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. Three Months Ended $ in thousands March 31, 2021 Revenues $ 20,694 Net loss $ ( 778 )

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2022
Segment Reporting [Abstract]
Schedule of Information about Reportable Segment	The table below presents information about reportable segments for the three months ended March 31, 2022 and 2021, respectively: Three Months Ended March 31, $ in thousands 2022 2021 Revenues: Cryptocurrency Datacenter and Power Generation $ 29,155 $ 11,063 Support Services 8,500 - Total Revenues $ 37,655 $ 11,063 Segment Adjusted EBITDA Cryptocurrency Datacenter and Power Generation $ 7,344 $ 4,221 Support Services 1,869 - Total Segments Adjusted EBITDA $ 9,213 $ 4,221
Schedule of Reconciliation of Total of Segments Adjusted EBITDA to Consolidated (Loss) Income Before Income Taxes	In addition, the table below provides a reconciliation of the total of the segments Adjusted EBITDA to the consolidated (loss) income before income taxes: Three Months Ended March 31, $ in thousands 2022 2021 Total Segments Adjusted EBITDA $ 9,213 $ 4,221 Depreciation and amortization ( 3,978 ) ( 1,261 ) Stock-based compensation ( 362 ) ( 656 ) Merger and other costs ( 213 ) ( 105 ) Expansion costs ( 2,104 ) - Interest expense, net ( 3,353 ) ( 188 ) Consolidated (loss) income before income taxes $ ( 797 ) $ 2,011

PROPERTY AND EQUIPMENT (Tables)

PROPERTY AND EQUIPMENT (Tables)	3 Months Ended
	Mar. 31, 2022
Property, Plant and Equipment [Abstract]
Summary of Property and Equipment, Net	Property and equipment, net consisted of the following at March 31, 2022 and December 31, 2021: $ in thousands Estimated Useful March 31, 2022 December 31, 2021 Plant infrastructure 15 - 39 years $ 34,976 $ 34,725 Miners 5 years 64,138 48,121 Miner facility infrastructure 15 years 15,957 15,143 Land N/A 13,460 8,460 Equipment 5 years 961 1,660 Software 3 years 636 636 Coal ash impoundment 4 years 2,410 2,410 Construction in process N/A 45,195 25,856 Miner deposits N/A 135,327 98,110 313,060 235,121 Less: Accumulated depreciation ( 21,009 ) ( 18,030 ) $ 292,051 $ 217,091

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	3 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Finite-lived Intangible Assets	The following is a summary of finite-lived intangible assets: $ in thousands Intangible Assets Accumulated Amortization Intangible Assets, Net Balance at December 31, 2021 $ 3,810 $ ( 273 ) $ 3,537 Amortization expense: Customer relationships - ( 207 ) ( 207 ) Tradename - ( 25 ) ( 25 ) Balance at March 31, 2022 $ 3,810 $ ( 505 ) $ 3,305

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Summary of Notes Payable	The following table provides information on the equipment financing agreements: $ in thousands Balance as of: Note Loan Date Maturity Date Interest Initial March 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 24 95 C March 2021 November 2022 17.0 % 2,229 991 1,362 D April 2021 December 2022 17.0 % 4,012 2,006 2,674 E - H May 2021 October 2023 15.0 % 15,724 16,089 15,223 I July 2021 January 2023 17.0 % 4,457 2,724 3,468 J July 2021 March 2023 17.0 % 2,717 1,509 1,962 K October 2021 June 2023 17.0 % 2,223 1,606 1,976 L March 2022 April 2024 13.0 % 54,425 52,706 - Bonds Payable October 2021 October 2026 8.5 % 55,200 51,961 51,843 Bonds Payable December 2021 October 2026 8.5 % 17,000 15,053 14,980 Secured Promissory Note March 2022 July 2022 / 6.0 % 26,500 25,251 - 169,920 94,828 Less: Current portion ( 66,729 ) ( 19,577 ) $ 103,191 $ 75,251
Summary of Future Maturities of Notes Payable	Minimum future principal payments on debt as of March 31, 2022 were as follows: $ in thousands Remainder of 2022 $ 58,116 2023 36,325 2024 11,739 2025 - 2026 72,200 Total $ 178,380

EQUITY BASED COMPENSATION (Tabl

EQUITY BASED COMPENSATION (Tables)	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Schedule of Unvested Restricted Common Stock Unit Awards Activity	The Company’s unvested RSU awards activity for the three months ended March 31, 2022 is summarized below: Weighted Average Grant Date RSUs Fair Value Unvested at December 31, 2021 516,987 $ 6.80 Granted 5,335 15.32 Vested ( 90,704 ) 6.25 Unvested at March 31, 2022 431,618 $ 7.01
Schedule of Stock Options Activity	The Company’s common stock options activity for the three months ended March 31, 2022 is summarized below: Weighted Average Weighted Average Remaining Aggregate Exercise Price Contractual Life Intrinsic Options Per Share (in years) Value Outstanding at December 31, 2021 583,080 $ 6.01 9.2 $ 5,854 Granted - - Exercised ( 334 ) 6.25 Forfeited ( 2,888 ) 6.25 Outstanding at March 31, 2022 579,858 $ 6.01 8.9 $ 1,430 Exercisable as of March 31, 2022 439,225 $ 5.86 8.9 $ 1,150

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	3 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Schedule of 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. Three Months Ended March 31: $ in thousands, except per share amounts 2022 2021 Numerator Net (loss) income $ ( 429 ) $ 1,279 Less: Net income attributable to the member units before the reorganization - ( 647 ) Net (loss) income attributable to Greenidge $ ( 429 ) $ 632 Denominator Basic weighted average shares outstanding 41,058 28,139 Dilutive effect of equity awards - 8 Dilutive effect of convertible preferred stock - - Diluted weighted average shares outstanding 41,058 28,147 (Loss) earnings per share Basic $ ( 0.01 ) $ 0.02 Diluted $ ( 0.01 ) $ 0.02

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2022
Supplemental Cash Flow Elements [Abstract]
Summary of noncash investing and financing activities	Greenidge had the following noncash investing and financing activities: Three Months Ended March 31, $ in thousands 2022 2021 Property and equipment purchases financed with common stock $ - $ 991 Property and equipment purchases in accounts payable $ 10,271 $ 876 Contribution of GGH Preferred Units and Senior Priority Units for common stock $ - $ 69,276 Contribution of related party notes payable and accrued interest for common stock $ - $ 3,615

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Right-of-use assets	$ 1,375		$ 1,472
Environmental trust liability	8,615		$ 8,615
Provision for income taxes	(368)	$ 732
Asset Retirement Obligation, Accretion Expense	$ 0	$ 33

MERGER WITH SUPPORT.COM - Addit

MERGER WITH SUPPORT.COM - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Business Acquisition [Line Items]
Amortization expense	$ 200
Income from operations	2,522	$ 1,885
Greenidge Generation Holdings Inc [Member]
Business Acquisition [Line Items]
Revenue	8,500
Income from operations	$ 1,500
Transaction cost		1,600
transaction costs after tax		$ 1,200

MERGER WITH SUPPORT.COM - Summa

MERGER WITH SUPPORT.COM - Summary of Supplemental Pro Forma Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Business Acquisition [Line Items]
Net (loss) income	$ (429)	$ 1,279
Greenidge Generation Holdings Inc [Member]
Business Acquisition [Line Items]
Revenues	20,694
Net (loss) income	$ (778)

MERGER AND OTHER COSTS - Detail

MERGER AND OTHER COSTS - Details of Merger and Other Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Merger Related Costs [Abstract]
Total Merger and other costs	$ 213	$ 105

SEGMENT INFORMATION - Additiona

SEGMENT INFORMATION - Additional Information (Details)	3 Months Ended
	Mar. 31, 2022Segment
Segment Reporting [Abstract]
Number of operating segments	2
Number of reporting segment	2

SEGMENT INFORMATION - Schedule

SEGMENT INFORMATION - Schedule of Information about Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Total revenue	$ 37,655	$ 11,063
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	37,655	11,063
Total Segments Adjusted EBITDA	9,213	4,221
Cryptocurrency Mining [Member]
Segment Reporting Information [Line Items]
Total revenue	23,232	8,997
Cryptocurrency Mining [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	29,155	11,063
Total Segments Adjusted EBITDA	7,344	4,221
Support Services [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	8,500
Total Segments Adjusted EBITDA	$ 1,869

SEGMENT INFORMATION - Schedul_2

SEGMENT INFORMATION - Schedule of Reconciliation of Total of Segments Adjusted EBITDA to Consolidated (Loss) Income Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Merger and other costs	$ (213)	$ (105)
Interest expense, net	(3,353)	(166)
(LOSS) INCOME BEFORE INCOME TAXES	(797)	2,011
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Segments Adjusted EBITDA	9,213	4,221
Depreciation and amortization	(3,978)	(1,261)
Stock-based compensation	(362)	(656)
Merger and other costs	213	105
Expansion costs	(2,104)
Interest expense, net	3,353	188
(LOSS) INCOME BEFORE INCOME TAXES	$ (797)	$ 2,011

SEGMENT INFORMATION - Summary o

SEGMENT INFORMATION - Summary of Reconciliation to Consolidated Total Assets of Company (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents	$ 96,453	$ 82,599	$ 39,166	$ 5,052
Short term investments		496
Total assets	$ 431,354	$ 341,267

PROPERTY AND EQUIPMENT - Summar

PROPERTY AND EQUIPMENT - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 313,060	$ 235,121
Less: Accumulated depreciation	(21,009)	(18,030)
Property and equipment, net	292,051	217,091
Plant infrastructure [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 34,976	34,725
Plant infrastructure [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Plant infrastructure [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	39 years
Miners [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 64,138	48,121
Estimated useful lives	5 years
Miner facility infrastructure [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 15,957	15,143
Estimated useful lives	15 years
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 13,460	8,460
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 961	1,660
Estimated useful lives	5 years
Software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 636	636
Estimated useful lives	3 years
Coal ash impoundment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,410	2,410
Estimated useful lives	4 years
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 45,195	25,856
Miner deposits [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 135,327	$ 98,110

PROPERTY AND EQUIPMENT - Additi

PROPERTY AND EQUIPMENT - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 3.7	$ 1.3

INTANGIBLE ASSETS - Summary of

INTANGIBLE ASSETS - Summary of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Intangible Assets	$ 3,810	$ 3,810
Accumulated Amortization	(505)	(273)
Intangible Assets, Net	(3,305)	$ (3,537)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	(207)
Intangible Assets, Net	(207)
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	(25)
Intangible Assets, Net	$ (25)

Debt - Summary of Notes Payable

Debt - Summary of Notes Payable (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Less: Current portion	$ (66,729)	$ (19,577)
Total	103,191	75,251
Initial Financing	178,400
Equipment Finance Agreement [Member]
Notes Payable	169,920	94,828
Less: Current portion	(66,729)	(19,577)
Total	103,191	75,251
Equipment Finance Agreement [Member] | Promissory Note [Member]
Notes Payable	$ 25,251	0
Loan Date	Mar. 31, 2022
Maturity Date	Jul. 31, 2022
Interest Rate	6.00%
Initial Financing	$ 26,500
Miner Equipment Note A [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 0	1,245
Loan Date	Dec. 31, 2020
Maturity Date	Jun. 30, 2022
Interest Rate	17.00%
Initial Financing	$ 4,482
Miner Equipment Note B [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 24	95
Loan Date	Dec. 31, 2020
Maturity Date	Jun. 30, 2022
Interest Rate	17.00%
Initial Financing	$ 428
Miner Equipment Note C [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 991	1,362
Loan Date	Mar. 31, 2021
Maturity Date	Nov. 30, 2022
Interest Rate	17.00%
Initial Financing	$ 2,229
Miner Equipment Note D [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 2,006	2,674
Loan Date	Apr. 30, 2021
Maturity Date	Dec. 31, 2022
Interest Rate	17.00%
Initial Financing	$ 4,012
Miner Equipment Note E And H [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 16,089	15,223
Loan Date	May 31, 2021
Maturity Date	Oct. 31, 2023
Interest Rate	15.00%
Initial Financing	$ 15,724
Miner Equipment Note I [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 2,724	3,468
Loan Date	Jul. 31, 2021
Maturity Date	Jan. 31, 2023
Interest Rate	17.00%
Initial Financing	$ 4,457
Miner Equipment Note J [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 1,509	1,962
Loan Date	Jul. 31, 2021
Maturity Date	Mar. 31, 2023
Interest Rate	17.00%
Initial Financing	$ 2,717
Miner Equipment Note K [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 1,606	1,976
Loan Date	Oct. 31, 2021
Maturity Date	Jun. 30, 2023
Interest Rate	17.00%
Initial Financing	$ 2,223
Miner Equipment Note L [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 52,706
Loan Date	Mar. 31, 2022
Maturity Date	Apr. 30, 2024
Interest Rate	13.00%
Initial Financing	$ 54,425
Bonds [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 51,961	51,843
Loan Date	Oct. 31, 2021
Maturity Date	Oct. 31, 2026
Interest Rate	8.50%
Initial Financing	$ 55,200
Bonds Two [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 15,053	$ 14,980
Loan Date	Dec. 31, 2021
Maturity Date	Oct. 31, 2026
Interest Rate	8.50%
Initial Financing	$ 17,000

Debt - Summary of Future Maturi

Debt - Summary of Future Maturities of Notes Payable (Detail) $ in Thousands	Mar. 31, 2022USD ($)
Maturities of Long-term Debt [Abstract]
Remainder of 2022	$ 58,116
2023	36,325
2024	11,739
2025	0
2026	72,200
Total	$ 178,380

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 21, 2022	Mar. 18, 2022	Mar. 31, 2022	Mar. 31, 2021
Interest expense			$ 3,400	$ 200
Debt instrument, face amount			178,400
Debt Instrument, Fair Value			169,900
Unamortized discounts and debt issuance costs			8,500
Master Equipment Financing Agreement [Member]
Interest rate bearing	13.00%
Aggregate principal loan amount			$ 81,000
Bridge Promissory Note [Member]
Interest rate bearing		6.00%
Bridge Promissory Note [Member] | B. Riley Commercial Capital, LLC [Member]
Aggregate principal loan amount		$ 26,500
Equipment Finance Agreement [Member] | Miner Equipment Note A [Member]
Interest Rate			17.00%
Debt instrument, face amount			$ 4,482
Equipment Finance Agreement [Member] | Miner Equipment Note B [Member]
Interest Rate			17.00%
Debt instrument, face amount			$ 428
Equipment Finance Agreement [Member] | Bridge Promissory Note [Member]
Interest Rate			6.00%
Debt instrument, face amount			$ 26,500
8.50% Senior Secured Notes Due 2026 [Member]
Interest Rate			8.50%

FINANCE LEASE - Additional Info

FINANCE LEASE - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Leases [Line Items]
Right of use asset at the lease commencement date	$ 1,375	$ 1,472

RELATED PARTY TRANSACTIONS - Ad

RELATED PARTY TRANSACTIONS - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Related Party Transaction [Line Items]
Interest expense	$ 3.4	$ 0.2
Letter of Credit [Member]
Related Party Transaction [Line Items]
Net proceeds from new line of credit	5
Atlas [Member]
Related Party Transaction [Line Items]
Limited guaranty payment	1
Empire [Member]
Related Party Transaction [Line Items]
Net proceeds from new line of credit	$ 3.6

STOCKHOLDERS' EQUITY - Addition

STOCKHOLDERS' EQUITY - Additional Information (Detail) - USD ($) $ in Millions	Oct. 06, 2021	Sep. 15, 2021	Mar. 31, 2022
Maximum [Member]
Class of Stock [Line Items]
Maximum class A common stock and class B common stock shares in excess of the exchange cap		19.99%
Private Placement | Greenidge Generation Holdings Inc [Member] | Common Stock Purchase Agreement and Registration Rights Agreement [Member]
Class of Stock [Line Items]
Proceeds from common stock purchase agreement		$ 200
Private Placement | Greenidge Generation Holdings Inc [Member] | Common Stock Purchase Agreement and Registration Rights Agreement [Member] | Maximum [Member]
Class of Stock [Line Items]
Discount Rate		6.00%
Private Placement | Greenidge Generation Holdings Inc [Member] | Common Stock Purchase Agreement and Registration Rights Agreement [Member] | Minimum [Member]
Class of Stock [Line Items]
Discount Rate		5.00%
Common Class A [Member]
Class of Stock [Line Items]
Additional Common Stock Shares Issued			415,000
Additional Common Stock Value Issued			$ 3.9
Common Class A [Member] | Minimum [Member]
Class of Stock [Line Items]
Investors obligation to purchase own issued and outstanding shares		4.99%
Common Class A [Member] | Common Stock Purchase Agreement and Registration Rights Agreement [Member]
Class of Stock [Line Items]
Proceeds from issuance of private placement		$ 500
Common Class A [Member] | Greenidge Common Stock
Class of Stock [Line Items]
Additional Common Stock Shares Issued	3,500,000

MEMBERS' EQUITY - Additional In

MEMBERS' EQUITY - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Shares based compensation, Expenses	$ 0.4	$ 0.7
Restricted Stock Units (RSUs) [Member]
Shares based payment arrangement, Equity instrument other than option, Grants in period	5,335
Shares based payment arrangement, Equity instrument other than option, Vested in period	90,704
Shares based payment arrangement, Equity instrument other than option, Non vested units	431,618		516,987

EQUITY BASED COMPENSATION - Sch

EQUITY BASED COMPENSATION - Schedule of Unvested Restricted Common Stock Unit Awards Activity (Detail) - Resctricted Common Stock units [Member]	3 Months Ended
	Mar. 31, 2022$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested at December 31, 2020 | shares	516,987
Granted | shares	5,335
Vested | shares	(90,704)
Unvested at March 31, 2022 | shares	431,618
Unvested at December 31, 2020 | $ / shares	$ 6.80
Granted | $ / shares	15.32
Vested | $ / shares	6.25
Unvested at March, 2022 | $ / shares	$ 7.01

EQUITY BASED COMPENSATION - S_2

EQUITY BASED COMPENSATION - Schedule of Stock Options Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price Per Share, Granted	$ 0
Weighted Average Exercise Price Per Share, Exercised	$ 6.25
Options vested and exercisable as of March 31, 2022	8 years 10 months 24 days
Common Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at December 31, 2021	583,080
Granted	0
Exercised	(334)
Forfeited	(2,888)
Outstanding at March 31, 2022	579,858
Options vested and exercisable as of March 31, 2022	439,225
Weighted Average Exercise Price Per Share, Outstanding at December 31, 2021	$ 6.01
Weighted Average Exercise Price Per Share, Forfeited	6.25
Weighted Average Exercise Price Per Share, Outstanding at March 31, 2022	6.01
Options vested and exercisable as of March 31, 2022	$ 5.86
Weighted Average Remaining Contractual Life (in years), Granted	9 years 2 months 12 days
Weighted Average Remaining Contractual Life (in years)	8 years 10 months 24 days
Aggregate Intrinsic Value, Outstanding at December 31, 2021	$ 5,854
Aggregate Intrinsic Value, Outstanding at March 31, 2022	1,430
Aggregate Intrinsic Value, Exercisable as of March 31, 2022	$ 1,150
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at March 31, 2022	431,618	616,920

EQUITY BASED COMPENSATION - Add

EQUITY BASED COMPENSATION - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Feb. 28, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Stock-based compensation expense	$ 0.4	$ 0.7
2021 Equity Plan [Member]
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Common stock reserved for issuance			3,831,112
Resticted Common Stock Unit
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Shares based payment arrangement, Equity instrument other than option, Grants in period	5,335
Fair market value of the awards granted	$ 0.1
Unrecognized compensation cost	$ 2.4
Weighted average vesting period	2 years
Resticted Common Stock Unit | 2021 Equity Plan [Member]
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Shares based payment arrangement, Equity instrument other than option, Grants in period	5,335
Vesting period	3 years
Common Stock Options [Member]
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Unrecognized compensation cost	$ 0.3
Weighted average vesting period	1 year 4 months 24 days

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Line Items]
Effective income tax rate as a percentage	46.20%	36.40%
State
Income Tax Disclosure [Line Items]
Effective income tax rate as a percentage	21.00%

EARNINGS PER SHARE - Additional

EARNINGS PER SHARE - Additional Information (Detail) - shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock oustanding	41,363,271		40,865,336
Antidilutive securities excluded from computation of earnings per share amount	0	0
Resticted Common Stock Unit
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Share based options outstanding	431,618	616,920
Common Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock oustanding	0
Share based options outstanding	579,858	330,744

EARNINGS PER SHARE - Schedule o

EARNINGS PER SHARE - Schedule of Basic Earnings and Diluted Per Share of Common Stock (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator
Net (loss) income	$ (429)	$ 1,279
Less: Net income attributable to the member units units before the reorganization	0	(647)
Net (loss) income attributable to Greenidge	$ (429)	$ 632
Denominator
Basic weighted average shares outstanding	41,058	28,139
Dilutive effect of equity awards	0	8
Dilutive effect of convertible preferred stock	0	0
Diluted weighted average shares outstanding	41,058	28,147
(Loss) earnings per share
Basic	$ (0.01)	$ 0.02
Diluted	$ (0.01)	$ 0.02

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Sep. 30, 2020	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Purchase Obligation		$ 197,000
Long term purchase commitment, Amount	$ 15,000	$ 135,300
Contractual obligation, Per month amount	$ 158
Contract terms		The contract ends in September 2030 and may be terminated by either party with 12 months' notice after the initial 10-year period.
Committed secured financing on equipment amount		$ 27,700

CONCENTRATIONS - Additional Inf

CONCENTRATIONS - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Sales Revenue Net [Member] | Customer Concentration Risk [Member] | One Major Customer [Member]
Concentration risk percentage	16.00%	19.00%
Sales Revenue Net [Member] | Customer Concentration Risk [Member] | Operator Customer One [Member]
Concentration risk percentage	50.00%
Sales Revenue Net [Member] | Customer Concentration Risk [Member] | Operator Customer Two [Member]
Concentration risk percentage	12.00%	72.00%
Sales Revenue Net [Member] | Supplier Concentration Risk [Member] | One Major Customer [Member]
Concentration risk percentage	45.00%	59.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Operator Customer One [Member]
Concentration risk percentage	73.00%		67.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Operator Customer Two [Member]
Concentration risk percentage			11.00%

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION - Summary of noncash investing and financing activities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Supplemental Cash Flow Information [Abstract]
Property and equipment purchases financed with common stock		$ 991
Property And Equipment Purchases In Accounts Payable	10,271	876
Contribution of GGH Preferred Units and Senior Priority Units for common stock	0	69,276
Contribution of related party notes payable and accrued interest for common stock	$ 0	$ 3,615

SUBSEQUENT EVENTS - Additional

SUBSEQUENT EVENTS - Additional Information (Detail) - USD ($)	Apr. 28, 2022	Apr. 07, 2022	Sep. 15, 2021	Apr. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Common stock, shares issued					41,363,271	40,865,336
Common stock, Par value					$ 0.0001	$ 0.0001
Common Stock Purchase Agreement and Registration Rights Agreement [Member] | Greenidge Generation Holdings Inc [Member] | Private Placement [Member]
Subsequent Event [Line Items]
Proceeds from common stock purchase agreement			$ 200,000,000
Subsequent Event [Member] | Greenidge Generation Holdings Inc [Member]
Subsequent Event [Line Items]
Common stock, shares issued				2,547,500
Proceeds from sale of common stock				$ 54,900,000
Subsequent Event [Member] | Common Stock Purchase Agreement and Registration Rights Agreement [Member] | Common Class A [Member]
Subsequent Event [Line Items]
Sale of stock	$ 5,720,951
Subsequent Event [Member] | Common Stock Purchase Agreement and Registration Rights Agreement [Member] | Greenidge Generation Holdings Inc [Member] | Common Class A [Member]
Subsequent Event [Line Items]
Proceeds from sale of common stock		$ 500,000,000
Maximum Common Stock Sell Percentage		19.99%