Greenidge Generation (GREE) 10-Q 15 Aug 22 2022 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Aug. 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	Jun. 30, 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	Q2
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		13,392,448
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	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 66,382	$ 82,599
Short term investments		496
Digital assets	323	476
Accounts receivable	6,520	5,524
Prepaid expenses	11,286	9,146
Emissions and carbon offset credits	1,260	2,361
Total current assets	85,771	100,602
LONG-TERM ASSETS:
Property and equipment, net	249,202	217,091
Right-of-use assets	1,278	1,472
Intangible assets, net	3,073	3,537
Goodwill	3,062	3,062
Deferred tax assets	17	15,058
Other long-term assets	563	445
Total assets	342,966	341,267
CURRENT LIABILITIES:
Accounts payable	12,054	5,923
Accrued emissions expense	3,890	2,634
Accrued expenses	17,424	10,375
Income taxes payable	165	2,481
Long-term debt, current portion	65,016	19,577
Lease obligation, current portion	291	736
Total current liabilities	98,840	41,726
LONG-TERM LIABILITIES:
Long-term debt, net of current portion and deferred financing fees	110,752	75,251
Lease obligation, net of current portion	166	193
Asset retirement obligations		2,691
Environmental liability	22,415	8,615
Other long-term liabilities	361	368
Total liabilities	232,534	128,844
COMMITMENTS AND CONTINGENCIES (NOTE 13)
STOCKHOLDERS' EQUITY:
Preferred stock, par value $0.0001, 20,000,000 shares authorized, none outstanding
Common stock, par value $0.0001, 3,000,000,000 shares authorized, 41,918,820 and 40,865,336 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	4	4
Additional paid-in capital	288,301	281,815
Cumulative translation adjustment	(166)
Accumulated deficit	(177,707)	(69,396)
Total stockholders' equity	110,432	212,423
Total liabilities and stockholders' equity	$ 342,966	$ 341,267

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 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	41,918,820	40,865,336
Common stock, Shares outstanding	41,918,820	40,865,336

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Operations And Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
REVENUE:
Total revenue	$ 31,339	$ 16,176	$ 68,994	$ 27,239
OPERATING COSTS AND EXPENSES
Selling, general, and administrative	11,088	3,627	25,480	6,812
Merger and other costs	485		698	1,248
Depreciation and amortization	4,867	1,603	8,845	2,864
Impairment of long-lived assets	71,500	0	71,500	0
Environmental Liability Remeasurement	11,109		11,109
Total operating costs and expenses	117,458	10,892	152,592	20,070
(Loss) income from operations	(86,119)	5,284	(83,598)	7,169
OTHER INCOME (EXPENSE), NET:
Interest expense, net	(6,910)	(202)	(10,262)	(368)
Interest expense—related party				(22)
(Loss) gain on sale of digital assets	(10)	(154)	(15)	141
Gain on sale of assets	629		629
Other income (loss), net	17	(13)	57	6
Total other expense, net	(6,274)	(369)	(9,591)	(243)
Consolidated (loss) income before income taxes	(92,393)	4,915	(93,189)	6,926
Provision for income taxes	15,489	1,397	15,121	2,129
NET (LOSS) INCOME	(107,882)	3,518	(108,310)	4,797
Foreign currency translation adjustment	(134)		(166)
COMPREHENSIVE (LOSS) INCOME	$ (108,016)	$ 3,518	$ (108,476)	$ 4,797
(Loss) earnings per share:
Basic	$ (2.61)	$ 0.12	$ (2.62)	$ 0.15
Diluted	$ (2.61)	$ 0.10	$ (2.62)	$ 0.12
Cryptocurrency Mining [Member]
REVENUE:
Total revenue	$ 20,067	$ 14,064	$ 43,300	$ 23,061
OPERATING COSTS AND EXPENSES
Cost of revenue	11,664	2,754	20,121	5,150
Power and Capacity [Member]
REVENUE:
Total revenue	2,859	2,112	8,782	4,178
OPERATING COSTS AND EXPENSES
Cost of revenue	3,172	1,970	7,195	3,996
Services and Other [Member]
REVENUE:
Total revenue	8,413		16,912
OPERATING COSTS AND EXPENSES
Cost of revenue	$ 3,573		$ 7,644

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, 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
Net (loss) income	4,797
Ending Balance at Jun. 30, 2021	92,939	$ 1	$ 3	113,054					(20,119)
Ending Balance (in shares) at Jun. 30, 2021		1,620,000	28,320,000
Beginning Balance at Mar. 31, 2021	89,014	$ 1	$ 3	112,647					(23,637)
Beginning Balance (in shares) at Mar. 31, 2021		1,620,000	28,320,000
Stock-based compensation expense	407			407
Net (loss) income	3,518								3,518
Ending Balance at Jun. 30, 2021	92,939	$ 1	$ 3	113,054					(20,119)
Ending Balance (in shares) at Jun. 30, 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
Beginning Balance at Dec. 31, 2021	212,423		$ 4	281,815					(69,396)
Beginning Balance (in shares) at Dec. 31, 2021			40,865,336
Net (loss) income	(108,310)
Ending Balance at Jun. 30, 2022	110,432		$ 4	288,301					(177,707)	(166)
Ending Balance (in shares) at Jun. 30, 2022			41,918,820
Beginning Balance at Mar. 31, 2022	216,052		$ 4	285,905					(69,825)	(32)
Beginning Balance (in shares) at Mar. 31, 2022			41,363,271
Stock-based compensation expense	306			306
Issuance of shares, net of issuance costs	2,078			2,078
Issuance of shares, net of issuance costs, Shares			553,587
Proceeds from stock options exercised	12			12
Proceeds from stock options exercised (in shares)			1,962
Foreign currency translation adjustment	(134)									(134)
Net (loss) income	(107,882)								(107,882)
Ending Balance at Jun. 30, 2022	$ 110,432		$ 4	$ 288,301					$ (177,707)	$ (166)
Ending Balance (in shares) at Jun. 30, 2022			41,918,820

Condensed Consolidated Statem_3

Condensed Consolidated Statements Of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Mar. 31, 2021
Payment of stock issuance costs	$ 342	$ 147
Preferred Stock | Support Com
Payment of stock issuance costs			$ 3,387

Condensed Consolidated Statem_4

Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOW FROM OPERATING ACTIVITIES:
Net (loss) income	$ (108,310)	$ 4,797
Adjustments to reconcile net (loss) income to net cash flow from operating activities:
Depreciation and amortization	8,845	2,864
Deferred income taxes	15,040	482
Impairment of long-lived assets	71,500	0
Amortization of debt issuance costs	1,909	0
Accretion of asset retirement obligations	0	68
Loss (gain) on sale of digital assets	10	(141)
Gain on sale of assets	(629)
Remeasurement of envronmental liability	11,109	67
Stock-based compensation expense	669	1,063
Changes in operating assets and liabilities:
Accounts receivable	(996)	21
Emissions credits/carbon offsets	1,102	258
Prepaids and other assets	(2,272)	(2,129)
Accounts payable	(800)	(870)
Accrued emissions	1,256	(1,268)
Accrued expenses	7,038	2,623
Income taxes payable	(2,316)	1,567
Net cash flow provided by operating activities	3,155	9,402
CASH FLOW FROM INVESTING ACTIVITIES:
Purchases of and deposits for property and equipment	(105,380)	(29,581)
Proceeds from sale of assets	(1,136)
Proceeds from sale of marketable securities	496
Net cash flow used in investing activities	(103,748)	(29,581)
CASH FLOW FROM FINANCING ACTIVITIES:
Proceeds from issuance of  preferred stock, net of issuance costs	0	37,112
Proceeds from issuance of common stock, net of issuance costs	5,869	0
Proceeds from stock options exercised	14	1,000
Restricted stock unit awards settled in cash for taxes	(65)	0
Proceeds from debt, net of issuance costs	96,605	15,686
Principal payments on debt	(17,574)	(1,760)
Proceeds from capital lease obligations	0	1,404
Repayments of capital lease obligations	(473)	(425)
Net cash flow provided by financing activities	84,376	53,017
CHANGE IN CASH AND CASH EQUIVALENTS	(16,217)	32,838
CASH AND CASH EQUIVALENTS - beginning of year	82,599	5,052
CASH AND CASH EQUIVALENTS - end of year	$ 66,382	$ 37,890

ORGANIZATION AND DESCRIPTION OF

ORGANIZATION AND DESCRIPTION OF BUSINESS	6 Months Ended
	Jun. 30, 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 ("Nasdaq") 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	6 Months Ended
	Jun. 30, 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 financial statements include all adjustments necessary for a fair presentation of the results for the interim periods presented and such adjustments are of a normal recurring nature. The results for the unaudited interim condensed consolidated statements of operations and comprehensive (loss) income are not necessarily indicative of results to be expected for the year ending December 31, 2022 or for any future interim period. The unaudited condensed interim consolidated financial statements do not include all of the information and notes required by United States Generally Accepted Accounting Standards ("GAAP") for complete financial statements. 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. 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 the Company's ability to continue as a going concern within one year after the date these financial statements have been issued. The Company’s condensed financial statements have been prepared assuming that it will continue as a going concern. During the three months ended June 30, 2022, the price of bitcoin decreased approximately 57 % and the price of natural gas increased approximately 53 %. 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 the three months ended June 30, 2022. At June 30, 2022, the Company had $ 66.4 million of cash and $ 0.6 million of bitcoin holdings at fair value, while having $ 33.4 million of accounts payable and accrued expenses, as well as $ 65 million of principal payments plus 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. Management has evaluated different options to improve its liquidity to fund the Company’s expenses and to support the Company’s debt servicing requirements. These options include, but are not limited to: • selling or monetizing certain assets, including but not limited to sales of additional miners, sales of surplus mining infrastructure equipment, or sales of unannounced and undeveloped locations the Company was evaluating for expansion; • issuances of equity, including but not limited to issuances under the 2022 Purchase Agreement (as defined below); • migrating certain of its equipment to lower cost locations; and • negotiating with lenders to modify the terms of certain of the Company’s existing financings. 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"). In the Company's efforts to further improve liquidity, Greenidge and the Noteholder amended the Secured Promissory Note on August 10, 2022. The amendment extended the maturity to June 2023 , reduced scheduled monthly amortization payments and reduced mandatory prepayments. The Company has received proceeds of $ 57.3 million since October 2021 from sales of common stock under the 2021 Purchase Agreement (as defined below) and the 2022 Purchase Agreement (as defined below), of which $ 2.4 million of proceeds, net of discounts, was received during the three months ended June 30, 2022. Additionally, the Company has sold certain of its miners and equipment during the three months ended June 30, 2022 for proceeds of $1.9 million. While the Company believes it will be successful in its efforts to implement the options to improve liquidity, which will allow it to meet its financial commitments for at least the next twelve months, there can be no assurance that these efforts will be successful. Reclassifications Certain prior year amounts have been reclassified to conform to the current period 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	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2022
Business Combinations [Abstract]
Merger with Support.com	$0.9	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 June 30, 2022, the acquired Support.com business contributed $ 8.4 million in revenue and $ 1.7 million of operating income, which includes approximately $ 0.2 million of amortization expenses of acquired intangible assets. For the six months ended June 30, 2022, the acquired Support.com business contributed $ 16.9 million in revenue and $ 3.2 million of operating income, which includes approximately $ 0.5 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 Six Months Ended $ in thousands June 30, 2021 June 30, 2021 Revenues $ 24,688 $ 45,382 Net income $ 3,489 $ 1,469 The pro forma results for three and six months ended June 30, 2021 include $0.9 million and $ 2.5 million, respectively, of transaction costs for both Greenidge and Support.com ($ 0.6 million and $ 1.8 million after tax, respectively), 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

PROPERTY AND EQUIPMENT	6 Months Ended
	Jun. 30, 2022
Property, Plant and Equipment [Abstract]
Property and Equipment	5. PROPERTY AND EQUIPMENT Property and equipment, net consisted of the following at June 30, 2022 and December 31, 2021: $ in thousands Estimated Useful June 30, 2022 December 31, 2021 Plant infrastructure 15 - 39 years $ 10,454 $ 34,725 Miners 5 years 107,431 48,121 Miner facility infrastructure 15 years 30,950 15,143 Land N/A 8,460 8,460 Equipment 5 years 821 1,660 Software 3 years 569 636 Coal ash impoundment 4 years - 2,410 Construction in process N/A 21,950 25,856 Miner deposits N/A 92,019 98,110 272,654 235,121 Less: Accumulated depreciation ( 23,452 ) ( 18,030 ) $ 249,202 $ 217,091 Total depreciation expense was $ 4.9 million and $ 1.6 million for the three months ended June 30, 2022 and 2021, respectively and $ 8.8 million and $ 2.9 million for the six months ended June 30, 2022 and 2021, respectively. 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. As a result of the significant reduction in the price of bitcoin and increased energy prices during the three months ended June 30, 2022, the Company recognized a noncash impairment charge of $ 71.5 million for the assets associated with the Cryptocurrency Datacenter and Power Generation segment to reduce the net book value of the long-lived assets to fair value. Fair value was determined utilizing the market approach. The excess of the book value over the estimated fair value was allocated to the long-lived assets of the Cryptocurrency and Power Generation segment. Additionally, as a result of the impairment assessment, the Company has reevaluated the useful lives of the assets and adjusted the lives of the miners from 5 years to 3 years and the lives of plant infrastructure from 15 - 39 years to 10 years effective July 1, 2022.

INTANGIBLE ASSETS

INTANGIBLE ASSETS	6 Months Ended
	Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	6. 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 intangible assets. The following is a summary of finite-lived intangible assets: $ in thousands As of June 30, 2022 Intangible Assets Accumulated Amortization Intangible Assets, Net Customer relationships (Note 3) 3,320 ( 659 ) 2,661 Tradename (Note 3) 490 ( 78 ) 412 Total $ 3,810 $ ( 737 ) $ 3,073 As of December 31, 2021 Intangible Assets Accumulated Amortization Intangible Assets, Net Customer relationships (Note 3) 3,320 ( 244 ) 3,076 Tradename (Note 3) 490 ( 29 ) 461 Total $ 3,810 $ ( 273 ) $ 3,537 Amortization expense was $ 0.2 million and $ 0.5 million for the three and six months ended June 30, 2022. There was no amortization expense for the three and six months ended June 30, 2021. Future amortization expense is as follows: $ in thousands Amortization 2022 (for the remainder of) $ 464 2023 928 2024 928 2025 684 Thereafter 69 Total $ 3,073

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	6 Months Ended
	Jun. 30, 2022
Related Party Transactions [Abstract]
Related Party Transactions	8. 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 June 30, 2022, payable to the New York State Department of Environmental Conservation ("NYSDEC"). This letter of credit guarantees the current value of the Company’s landfill environmental liability (see Note 13). Atlas also obtained a letter of credit from a financial institution in the am ount of $ 3.6 m illion at June 30, 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. Other Affiliates of Atlas from time to time incur certain expansion costs for the benefit of Greenidge, which are fully reimbursed by Greenidge. The amount of costs reimbursed by Greenidge during the three months ended June 30, 2022 was less than $ 0.1 million.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
	Jun. 30, 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. 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 were 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 $200,000,000 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 $200,000,000 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 June 30, 2022, Greenidge issued 553,587 shares of class A common stock to the Investor pursuant to the 2022 Purchase Agreement for aggregate proceeds of approximately $ 2.4 million, net of discounts .

EQUITY BASED COMPENSATION

EQUITY BASED COMPENSATION	6 Months Ended
	Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]
Equity Based Compensation	10. 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”), applicable to employees and non-employee directors. Restricted Common Stock Unit Awards During the six months ended June 30, 2022 , the Company awarded 55,870 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 six months ended June 30, 2022 is summarized below: Weighted Average Grant Date RSUs Fair Value Unvested at December 31, 2021 516,987 $ 6.80 Granted 55,870 $ 5.70 Vested ( 90,704 ) $ 6.25 Unvested at June 30, 2022 482,153 $ 6.77 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 six months ended June 30, 2022 , the fair market value of the awards granted totaled $ 0.3 million, and as of June 30, 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 1.27 years. Common Stock Options The Company’s common stock options activity for the six months ended June 30, 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 ( 2,296 ) $ 6.25 Forfeited ( 4,221 ) $ 6.25 Outstanding at June 30, 2022 576,563 $ 6.01 8.7 $ — Exercisable as of June 30, 2022 437,263 $ 5.85 8.7 $ 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. As of June 30, 2022, there was approxim ately $ 0.2 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 1.78 years. Stock-based Compensation The Company recognized stock-based compensation expense of $ 0.3 million and $ 0.4 million during the three months ended June 30, 2022 and 2021, respectively and $ 0.7 million and $ 1.1 million during the six months ended June 30, 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	6 Months Ended
	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	11. 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 ( 16.8 %) and ( 16.2 %) for the three and six months ended June 30, 2022, respectively. The effective tax rates for the three and six months ended June 30, 2022 were different from the U .S. federal statutory rate of 21 % primarily due to a charge of $ 15.0 million for the recognition of a valuation allowance during the three months ended June 30, 2022 for deferred tax assets, primarily related to historical net operating loss carryforwards of the Support.com business that was acquired in 2021, due to the reduced profitability caused by the declines in the price of bitcoin and the increased power costs. The Company's effective tax rate was 28.4 % and 30.7 % for the three and six months ended June 30, 2021, respectively. The effective tax rates for the three and six months ended June 30, 2021 include the recognition of a deferred tax liability caused by the reorganization from a limited liability company to a corporation during the three months ended March 31, 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	6 Months Ended
	Jun. 30, 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 June 30: Six Months Ended June 30: $ in thousands, except per share amounts 2022 2021 2022 2021 Numerator Net (loss) income $ ( 107,882 ) $ 3,518 $ ( 108,310 ) $ 4,797 Less: Net income attributable to the member units before the reorganization - - - ( 648 ) Net (loss) income attributable to Greenidge $ ( 107,882 ) $ 3,518 $ ( 108,310 ) $ 4,149 Denominator Basic weighted average shares outstanding 41,555 28,320 41,308 28,283 Dilutive effect of equity awards - 625 - 482 Dilutive effect of convertible preferred stock - 6,480 - 6,480 Diluted weighted average shares outstanding 41,555 35,425 41,308 35,245 (Loss) earnings per share Basic $ ( 2.61 ) $ 0.12 $ ( 2.62 ) $ 0.15 Diluted $ ( 2.61 ) $ 0.10 $ ( 2.62 ) $ 0.12 For the three and six months ended June 30, 2021, basic earnings per share is applicable only for the period from January 29, 2021 through June 30, 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 and six months ended June 30, 2022, there was no impact of dilution from any of the outstanding 482,153 RSUs or 576,563 common stock options due to the net loss, since inclusion of any impact from these awards would be antidilutive. For the three and six months ended June 30, 2021, there were no shares excluded from the calculation of diluted earnings per share.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 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. Environmental Liabilities 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 $ 8.6 million as of June 30, 2022 and December 31, 2021. 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 Company has coal combustion residual ("CCR") liabilities associated with the closure of a coal ash pond located on the Company's property in the Town of Torrey, Ne w York. In accordance with ASC 410-30, the Company has a liability of $ 13.8 million as of June 30, 2022, which includes a charge of $ 11.1 million during the three months ended June 30, 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. 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 June 30, 2022 , the Company had $ 92.0 million of cash on deposit recorded within Property and equipment, net associated with future deliveries of miners under non-fixed price purchase agreements with Bitmain Technologies, Ltd. ("Bitmain") that would require up to an additional $ 31.7 million of payments to be made associated with such miners, but the additional payments, if any, may be lower, but not higher, than this based on final pricing determined by Bitmain. Contractually, the Company is able to cancel delivery of these future miners upon receipt of the final pricing of the miners approximately a month in advance of planned delivery. If the order is cancelled at the time of final pricing the value of the deposits would be refundable no later than two years from cancellation. 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 $ 158,000 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	6 Months Ended
	Jun. 30, 2022
Risks and Uncertainties [Abstract]
Concentrations	14. CONCENTRATIONS The Company has one power customer, NYISO, that accounted for 9 % and 13 % of consolidated revenue for the three months ended June 30, 2022 and 2021, respectively. NYISO accounted for 13 % and 15 % of consolidated revenue for the six months ended June 30, 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 a pproximately 52 % and 75 % of total revenue for the three months ended June 30, 2022 and 2021, respectively, and 51 % and 73 % for the six months ended June 30, 2022 and 2021, respectively. Revenue from a different pool operator customer accounted for approximately 8 % and 12 % of total revenue for the three months ended June 30, 2022 and 2021, respectively, and 10 % and 12 % for the six months ended June 30, 2022 and 2021, respectively. The Support Services segment's largest customer accounted for appro ximately 20 % and 18 % of the Company's consolidated revenue during the three and six months ended June 30, 2022 and also accounted for approximately 64 % and 67 % of the Company's consolidated accounts receivable balance at June 30, 2022 and December 31, 2021, respectively. The Company has one natural gas vendor that accounted for approximately 51 % and 56 % of cost of revenue for the three months ended June 30, 2022 and 2021, respectively and 48 % and 59 % of revenue for the six months ended June 30, 2022 and 2021, respectively.

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	6 Months Ended
	Jun. 30, 2022
Supplemental Cash Flow Information [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	15. SUPPLEMENTAL CASH FLOW INFORMATION Greenidge had the following noncash investing and financing activities: Six Months Ended June 30, $ in thousands 2022 2021 Property and equipment purchases financed with common stock $ - $ 991 Property and equipment purchases in accounts payable $ 9,701 $ 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	6 Months Ended
	Jun. 30, 2022
Subsequent Events [Abstract]
Subsequent Events	16. SUBSEQUENT EVENTS Subsequent events have been evaluated through August 15, 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. On August 10, 2022, Greenidge and the Noteholder agreed to amend the terms of the Secured Promissory Note. Refer to Note 7 for a further discussion.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Reclassifications	Reclassifications Certain prior year amounts have been reclassified to conform to the current period 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 AND OTHER COSTS (Tables)

MERGER AND OTHER COSTS (Tables)	6 Months Ended
	Jun. 30, 2022
Business Combinations [Abstract]
Merger and other costs details	• Recording the related tax effects of pro forma adjustments. Three Months Ended Six Months Ended $ in thousands June 30, 2021 June 30, 2021 Revenues $ 24,688 $ 45,382 Net income $ 3,489 $ 1,469

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
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 June 30, Six Months Ended June 30, $ in thousands 2022 2021 2022 2021 Total Segments Adjusted EBITDA $ 2,872 $ 8,065 $ 12,086 $ 12,491 Depreciation and amortization ( 4,867 ) ( 1,603 ) ( 8,845 ) ( 2,864 ) Stock-based compensation ( 306 ) ( 407 ) ( 669 ) ( 1,063 ) Merger and other costs ( 485 ) ( 938 ) ( 698 ) ( 1,248 ) Expansion costs ( 88 ) - ( 2,192 ) - Interest expense, net ( 6,910 ) ( 202 ) ( 10,262 ) ( 390 ) Long-lived asset impairment ( 71,500 ) - ( 71,500 ) - Remeasurement of environmental liability ( 11,109 ) - ( 11,109 ) - Consolidated (loss) income before income taxes $ ( 92,393 ) $ 4,915 $ ( 93,189 ) $ 6,926

PROPERTY AND EQUIPMENT (Tables)

PROPERTY AND EQUIPMENT (Tables)	6 Months Ended
	Jun. 30, 2022
Property, Plant and Equipment [Abstract]
Summary of Property and Equipment, Net	Property and equipment, net consisted of the following at June 30, 2022 and December 31, 2021: $ in thousands Estimated Useful June 30, 2022 December 31, 2021 Plant infrastructure 15 - 39 years $ 10,454 $ 34,725 Miners 5 years 107,431 48,121 Miner facility infrastructure 15 years 30,950 15,143 Land N/A 8,460 8,460 Equipment 5 years 821 1,660 Software 3 years 569 636 Coal ash impoundment 4 years - 2,410 Construction in process N/A 21,950 25,856 Miner deposits N/A 92,019 98,110 272,654 235,121 Less: Accumulated depreciation ( 23,452 ) ( 18,030 ) $ 249,202 $ 217,091

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	6 Months Ended
	Jun. 30, 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 As of June 30, 2022 Intangible Assets Accumulated Amortization Intangible Assets, Net Customer relationships (Note 3) 3,320 ( 659 ) 2,661 Tradename (Note 3) 490 ( 78 ) 412 Total $ 3,810 $ ( 737 ) $ 3,073 As of December 31, 2021 Intangible Assets Accumulated Amortization Intangible Assets, Net Customer relationships (Note 3) 3,320 ( 244 ) 3,076 Tradename (Note 3) 490 ( 29 ) 461 Total $ 3,810 $ ( 273 ) $ 3,537
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Future amortization expense is as follows: $ in thousands Amortization 2022 (for the remainder of) $ 464 2023 928 2024 928 2025 684 Thereafter 69 Total $ 3,073

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 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 June 30, 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 % 2,229 495 1,362 D April 2021 December 2022 17.0 % 4,012 1,114 2,674 E - H May 2021 October 2023 15.0 % 15,724 14,577 15,223 I July 2021 January 2023 17.0 % 4,457 1,733 3,468 J July 2021 March 2023 17.0 % 2,717 1,057 1,962 K October 2021 June 2023 17.0 % 2,223 1,235 1,976 L March 2022 April 2024 13.0 % 54,425 68,399 - Bonds Payable October 2021 October 2026 8.5 % 55,200 52,096 51,843 Bonds Payable December 2021 October 2026 8.5 % 17,000 15,134 14,980 Secured Promissory Note March 2022 August 2022 / 6.0 % 26,500 19,928 - 175,768 94,828 Less: Current portion ( 65,016 ) ( 19,577 ) $ 110,752 $ 75,251

EQUITY BASED COMPENSATION (Tabl

EQUITY BASED COMPENSATION (Tables)	6 Months Ended
	Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]
Schedule of Unvested Restricted Common Stock Unit Awards Activity	The Company’s unvested RSU awards activity for the six months ended June 30, 2022 is summarized below: Weighted Average Grant Date RSUs Fair Value Unvested at December 31, 2021 516,987 $ 6.80 Granted 55,870 $ 5.70 Vested ( 90,704 ) $ 6.25 Unvested at June 30, 2022 482,153 $ 6.77
Schedule of Stock Options Activity	The Company’s common stock options activity for the six months ended June 30, 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 ( 2,296 ) $ 6.25 Forfeited ( 4,221 ) $ 6.25 Outstanding at June 30, 2022 576,563 $ 6.01 8.7 $ — Exercisable as of June 30, 2022 437,263 $ 5.85 8.7 $ 8,386

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	6 Months Ended
	Jun. 30, 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 June 30: Six Months Ended June 30: $ in thousands, except per share amounts 2022 2021 2022 2021 Numerator Net (loss) income $ ( 107,882 ) $ 3,518 $ ( 108,310 ) $ 4,797 Less: Net income attributable to the member units before the reorganization - - - ( 648 ) Net (loss) income attributable to Greenidge $ ( 107,882 ) $ 3,518 $ ( 108,310 ) $ 4,149 Denominator Basic weighted average shares outstanding 41,555 28,320 41,308 28,283 Dilutive effect of equity awards - 625 - 482 Dilutive effect of convertible preferred stock - 6,480 - 6,480 Diluted weighted average shares outstanding 41,555 35,425 41,308 35,245 (Loss) earnings per share Basic $ ( 2.61 ) $ 0.12 $ ( 2.62 ) $ 0.15 Diluted $ ( 2.61 ) $ 0.10 $ ( 2.62 ) $ 0.12

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	6 Months Ended
	Jun. 30, 2022
Supplemental Cash Flow Elements [Abstract]
Summary of noncash investing and financing activities	Greenidge had the following noncash investing and financing activities: Six Months Ended June 30, $ in thousands 2022 2021 Property and equipment purchases financed with common stock $ - $ 991 Property and equipment purchases in accounts payable $ 9,701 $ 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	1 Months Ended	3 Months Ended		6 Months Ended
	Oct. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 18, 2022	Dec. 31, 2021
Right-of-use assets		$ 1,278		$ 1,278			$ 1,472
Accounts payable and accrued expenses		33,400		33,400
Principal payments plus interest payments on debt				65,000
Impairment Loss		71,500	$ 0	71,500	$ 0
Proceeds from sale of common stock				5,869	0
Digital assets		$ 600		$ 600
Percentage of Increase In Bitcoin		57%
Increase in natural gas				53%
Cash		$ 66,400		$ 66,400
Provision for income taxes		15,489	$ 1,397	15,121	2,129
Asset Retirement Obligation, Accretion Expense				$ 0	$ 68
B Riley
Debt extended maturity date				Jun. 30, 2023
Proceeds from sale of common stock	$ 57,300	$ 2,400
B. Riley Commercial Capital, LLC [Member] | Bridge Promissory Note [Member]
Aggregate principal loan amount						$ 26,500

MERGER WITH SUPPORT.COM - Addit

MERGER WITH SUPPORT.COM - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Business Acquisition [Line Items]
Amortization expense	$ 200	$ 0	$ 500	$ 0
(Loss) income from operations	(86,119)	5,284	(83,598)	7,169
Support.Com Business Acquisition [Member]
Business Acquisition [Line Items]
Amortization expense	200		500
Revenue	8,400		16,900
business acquisition proforma costs				2,500
(Loss) income from operations	$ 1,700		$ 3,200
transaction costs after tax		$ 600		$ 1,800

MERGER WITH SUPPORT.COM - Summa

MERGER WITH SUPPORT.COM - Summary of Supplemental Pro Forma Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Business Acquisition [Line Items]
Net (loss) income	$ (107,882)	$ (429)	$ 3,518	$ 1,279	$ (108,310)	$ 4,797
Support.Com Business Acquisition [Member]
Business Acquisition [Line Items]
Revenues			24,688			45,382
Net (loss) income			$ 3,489			$ 1,469

SEGMENT INFORMATION - Additiona

SEGMENT INFORMATION - Additional Information (Details)	6 Months Ended
	Jun. 30, 2022 Segment
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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Total revenue	$ 31,339	$ 16,176	$ 68,994	$ 27,239
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	31,339	16,176	68,994	27,239
Total Segments Adjusted EBITDA	2,872	8,065	12,086	12,491
Cryptocurrency Mining [Member]
Segment Reporting Information [Line Items]
Total revenue	20,067	14,064	43,300	23,061
Cryptocurrency Mining [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	22,926	16,176	52,082	27,239
Total Segments Adjusted EBITDA	835	8,065	8,181	12,491
Support Services [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	8,413		16,912
Total Segments Adjusted EBITDA	$ 2,037		$ 3,905

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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Merger and other costs	$ (485)		$ (698)	$ (1,248)
Interest expense, net	(6,910)	(202)	(10,262)	(368)
Consolidated (loss) income before income taxes	(92,393)	4,915	(93,189)	6,926
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Segments Adjusted EBITDA	2,872	8,065	12,086	12,491
Depreciation and amortization	(4,867)	(1,603)	(8,845)	(2,864)
Stock-based compensation	(306)	(407)	(669)	(1,063)
Merger and other costs	(485)	(938)	(698)	(1,248)
Expansion costs	(88)		(2,192)
Interest expense, net	(6,910)	(202)	(10,262)	(390)
Remeasurement of environmental liability	(11,109)		(11,109)
Long-lived asset impairment	(71,500)		(71,500)
Consolidated (loss) income before income taxes	$ (92,393)	$ 4,915	$ (93,189)	$ 6,926

PROPERTY AND EQUIPMENT - Summar

PROPERTY AND EQUIPMENT - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 272,654	$ 235,121
Less: Accumulated depreciation	(23,452)	(18,030)
Property and equipment, net	249,202	217,091
Plant infrastructure [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 10,454	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	$ 107,431	48,121
Estimated useful lives	5 years
Miner facility infrastructure [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 30,950	15,143
Estimated useful lives	15 years
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 8,460	8,460
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 821	1,660
Estimated useful lives	5 years
Software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 569	636
Estimated useful lives	3 years
Coal ash impoundment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 0	2,410
Estimated useful lives	4 years
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,950	25,856
Miner deposits [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 92,019	$ 98,110

PROPERTY AND EQUIPMENT - Additi

PROPERTY AND EQUIPMENT - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 4,900	$ 1,600	$ 8,800	$ 2,900
Impairment of long-lived assets	71,500	$ 0	$ 71,500	$ 0
Plant infrastructure [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of plant infrastructure			10
Plant infrastructure [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of plant infrastructure			15
Plant infrastructure [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of plant infrastructure			39 years
Miners [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of plant infrastructure			5 years
Miners [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of plant infrastructure			3 years
Cryptocurrency Datacenter and Power Generation
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets	$ 71,500

INTANGIBLE ASSETS - Summary of

INTANGIBLE ASSETS - Summary of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Intangible Assets	$ 3,810	$ 3,810
Accumulated Amortization	(737)	(273)
Intangible Assets, Net	3,073	3,537
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets	3,320	3,320
Accumulated Amortization	(659)	(244)
Intangible Assets, Net	2,661	3,076
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets	490	490
Accumulated Amortization	(78)	(29)
Intangible Assets, Net	$ 412	$ 461

INTANGIBLE ASSETS (Additional I

INTANGIBLE ASSETS (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 0.2	$ 0	$ 0.5	$ 0

INTANGIBLE ASSETS - Schedule of

INTANGIBLE ASSETS - Schedule of Future amortisation expense (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2022 (for the remainder of)	$ 464
2023	928
2024	928
2025	684
Thereafter	69
Total	$ 3,073	$ 3,537

Debt - Summary of Notes Payable

Debt - Summary of Notes Payable (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Less: Current portion	$ (65,016)	$ (19,577)
Total	110,752	75,251
Initial Financing	182,700
Equipment Finance Agreement [Member]
Notes Payable	175,768	94,828
Less: Current portion	(65,016)	(19,577)
Total	110,752	75,251
Equipment Finance Agreement [Member] | Promissory Note [Member]
Notes Payable	$ 19,928
Loan Date	Mar. 31, 2022
Maturity Date	Jul. 31, 2022
Interest Rate	6%
Initial Financing	$ 26,500
Miner Equipment Note A [Member] | Equipment Finance Agreement [Member]
Notes Payable		1,245
Loan Date	Dec. 31, 2020
Maturity Date	Jun. 30, 2022
Interest Rate	17%
Initial Financing	$ 4,482
Miner Equipment Note B [Member] | Equipment Finance Agreement [Member]
Notes Payable		95
Loan Date	Dec. 31, 2020
Maturity Date	Jun. 30, 2022
Interest Rate	17%
Initial Financing	$ 428
Miner Equipment Note C [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 495	1,362
Loan Date	Mar. 31, 2021
Maturity Date	Nov. 30, 2022
Interest Rate	17%
Initial Financing	$ 2,229
Miner Equipment Note D [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 1,114	2,674
Loan Date	Apr. 30, 2021
Maturity Date	Dec. 31, 2022
Interest Rate	17%
Initial Financing	$ 4,012
Miner Equipment Note E And H [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 14,577	15,223
Loan Date	May 31, 2021
Maturity Date	Oct. 31, 2023
Interest Rate	15%
Initial Financing	$ 15,724
Miner Equipment Note I [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 1,733	3,468
Loan Date	Jul. 31, 2021
Maturity Date	Jan. 31, 2023
Interest Rate	17%
Initial Financing	$ 4,457
Miner Equipment Note J [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 1,057	1,962
Loan Date	Jul. 31, 2021
Maturity Date	Mar. 31, 2023
Interest Rate	17%
Initial Financing	$ 2,717
Miner Equipment Note K [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 1,235	1,976
Loan Date	2021-10-31
Maturity Date	Jun. 30, 2023
Interest Rate	17%
Initial Financing	$ 2,223
Miner Equipment Note L [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 68,399
Loan Date	Mar. 31, 2022
Maturity Date	Apr. 30, 2024
Interest Rate	13%
Initial Financing	$ 54,425
Bonds [Member] | Equipment Finance Agreement [Member]
Notes Payable	$ 52,096	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	$ 15,134	$ 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	Jun. 30, 2022 USD ($)
Maturities of Long-Term Debt [Abstract]
Remainder of 2022	$ 47,340
2023	49,181
2024	13,964
2025
2026	72,200
Total	$ 182,685

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($) $ in Thousands			3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 21, 2022	Mar. 18, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2022	Aug. 31, 2022	Aug. 10, 2022	Mar. 31, 2022
Interest expense			$ 6,900	$ 200	$ 10,300	$ 400
Debt instrument, face amount			182,700		182,700
Debt Instrument, Fair Value			175,800		175,800
Unamortized discounts and debt issuance costs			$ 6,900		$ 6,900
Debt Conversion, Converted Instrument, Rate							65%
Subsequent Event [Member]
Amended principal amount									$ 16,400
Greenidge And Noteholder [Member]
Debt Instrument, Interest Rate, Effective Percentage								7.50%
Master Equipment Financing Agreement [Member]
Interest rate bearing	13%
Aggregate principal loan amount										$ 81,000
Bridge Promissory Note [Member]
Interest rate bearing		6%
Equipment Finance Agreement [Member] | Miner Equipment Note A [Member]
Interest Rate			17%		17%
Debt instrument, face amount			$ 4,482		$ 4,482
Equipment Finance Agreement [Member] | Miner Equipment Note B [Member]
Interest Rate			17%		17%
Debt instrument, face amount			$ 428		$ 428
Equipment Finance Agreement [Member] | Bridge Promissory Note [Member]
Interest Rate			6%		6%
Debt instrument, face amount			$ 26,500		$ 26,500
Master Equipment Finance Agreement [Member]
Borrowed amount partially funded	$ 54,000		$ 17,000		$ 17,000
8.50% Senior Secured Notes Due 2026 [Member]
Interest Rate			8.50%		8.50%

FINANCE LEASE - Additional Info

FINANCE LEASE - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Leases [Line Items]
Right of use asset at the lease commencement date	$ 1,278	$ 1,472

RELATED PARTY TRANSACTIONS - Ad

RELATED PARTY TRANSACTIONS - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Related Party Transaction [Line Items]
Interest expense	$ 6.9	$ 0.2	$ 10.3	$ 0.4
Greenidge Blocker Corp [Member]
Related Party Transaction [Line Items]
costs re-imbursed by related party			0.1
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		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					3 Months Ended
	Apr. 28, 2022	Apr. 07, 2022	Apr. 06, 2022	Sep. 15, 2021	Jun. 30, 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%
Common Class A [Member]
Class of Stock [Line Items]
Additional Common Stock Shares Issued					553,587
Additional Common Stock Value Issued					$ 2.4
Common Class A [Member] | Common Stock Purchase Agreement and Registration Rights Agreement [Member]
Class of Stock [Line Items]
Number of Shares Issued in Transaction			2,547,500
Proceeds from common stock purchase agreement			$ 54.9
Proceeds from issuance of private placement		$ 500		$ 500
Common Class A [Member] | Greenidge Common Stock
Class of Stock [Line Items]
Additional Common Stock Shares Issued	5,720,951

MEMBERS' EQUITY - Additional In

MEMBERS' EQUITY - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Shares based compensation, Expenses	$ 0.3	$ 0.4	$ 0.7	$ 1.1
Restricted Stock Units (RSUs) [Member]
Shares based payment arrangement, Equity instrument other than option, Grants in period			55,870
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	482,153		482,153		516,987

EQUITY BASED COMPENSATION - Sch

EQUITY BASED COMPENSATION - Schedule of Unvested Restricted Common Stock Unit Awards Activity (Detail) - Resctricted Common Stock units [Member]	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unvested at December 31, 2021 | shares	516,987
Granted | shares	55,870
Vested | shares	(90,704)
Unvested at June 30, 2022 | shares	482,153
Unvested at December 31, 2021 | $ / shares	$ 6.80
Granted | $ / shares	5.70
Vested | $ / shares	6.25
Unvested at June 30, 2022 | $ / shares	$ 6.77

EQUITY BASED COMPENSATION - S_2

EQUITY BASED COMPENSATION - Schedule of Stock Options Activity (Detail) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted Average Exercise Price Per Share, Granted | $ / shares	$ 0
Weighted Average Exercise Price Per Share, Exercised | $ / shares	$ 6.25
Options vested and exercisable as of June 30, 2022	8 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding at June 30, 2022 | $	$ 0
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	(2,296)
Forfeited	(4,221)
Outstanding at June 30, 2022	576,563	583,080
Options vested and exercisable as of June 30, 2022	437,263
Weighted Average Exercise Price Per Share, Outstanding at December 31, 2021 | $ / shares	$ 6.01
Weighted Average Exercise Price Per Share, Forfeited | $ / shares	6.25
Weighted Average Exercise Price Per Share, Outstanding at June 30, 2022 | $ / shares	6.01	$ 6.01
Options vested and exercisable as of June 30, 2022 | $ / shares	$ 5.85
Weighted Average Remaining Contractual Life (in years), Granted		9 years 2 months 12 days
Weighted Average Remaining Contractual Life (in years)	8 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding at December 31, 2021 | $	$ 5,854
Aggregate Intrinsic Value, Outstanding at June 30, 2022 | $		$ 5,854
Aggregate Intrinsic Value, Exercisable as of June 30, 2022 | $	$ 8,386
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Outstanding at June 30, 2022	482,153

EQUITY BASED COMPENSATION - Add

EQUITY BASED COMPENSATION - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Feb. 28, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Stock-based compensation expense	$ 0.3	$ 0.4	$ 0.7	$ 1.1
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			55,870
Fair market value of the awards granted			$ 0.3
Unrecognized compensation cost	2.4		$ 2.4
Weighted average vesting period			1 year 3 months 7 days
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			55,870
Vesting period			3 years
Common Stock Options [Member]
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]
Unrecognized compensation cost	$ 0.2		$ 0.2
Weighted average vesting period			1 year 9 months 10 days

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Line Items]
Effective income tax rate as a percentage	(16.80%)	28.40%	(16.20%)	30.70%
Charge for recognition of valuation allowance	$ 15
State
Income Tax Disclosure [Line Items]
Effective income tax rate as a percentage	21%		21%

EARNINGS PER SHARE - Additional

EARNINGS PER SHARE - Additional Information (Detail) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock oustanding	41,918,820		41,918,820		40,865,336
Antidilutive securities excluded from computation of earnings per share amount	0		0
Diluted earnings per share	$ (2.61)	$ 0.10	$ (2.62)	$ 0.12
Resticted Common Stock Unit
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Share based options outstanding	482,153		482,153
Common Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock oustanding	0		0
Share based options outstanding	576,563		576,563

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				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator
Net (loss) income	$ (107,882)	$ (429)	$ 3,518	$ 1,279	$ (108,310)	$ 4,797
Less: Net income attributable to the member units units before the reorganization			0			(648)
Net (loss) income attributable to Greenidge	$ (107,882)		$ 3,518		$ (108,310)	$ 4,149
Denominator
Basic weighted average shares outstanding	41,555		28,320		41,308	28,283
Dilutive effect of equity awards			625			482
Dilutive effect of convertible preferred stock			6,480			6,480
Diluted weighted average shares outstanding	41,555		35,425		41,308	35,245
(Loss) earnings per share
Basic	$ (2.61)		$ 0.12		$ (2.62)	$ 0.15
Diluted	$ (2.61)		$ 0.10		$ (2.62)	$ 0.12

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Sep. 30, 2020	Mar. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Product Liability Contingency [Line Items]
Environmental trust liability			$ 22,415	$ 8,615
Long term purchase commitment, Amount	$ 15,000
Contractual obligation, Per month amount	$ 158,000
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			92,000
Additional commitment and contingency amount			31,700
Coal ash impoundment [Member]
Product Liability Contingency [Line Items]
Environmental Obligations			13,800
Environmental trust liability			8,600	$ 8,600
Selling General And Administrative Expenses Member | Coal ash impoundment [Member]
Product Liability Contingency [Line Items]
Environmental Obligations			$ 11,100

CONCENTRATIONS - Additional Inf

CONCENTRATIONS - Additional Information (Detail)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Sales Revenue Net [Member] | Customer Concentration Risk [Member] | One Major Customer [Member]
Concentration risk percentage	9%	13%	13%	15%
Sales Revenue Net [Member] | Customer Concentration Risk [Member] | Operator Customer One [Member]
Concentration risk percentage	52%	75%	51%	73%
Sales Revenue Net [Member] | Customer Concentration Risk [Member] | Operator Customer Two [Member]
Concentration risk percentage	8%	12%	10%	12%
Sales Revenue Net [Member] | Supplier Concentration Risk [Member] | One Major Customer [Member]
Concentration risk percentage	51%	56%	48%	59%
Sales Revenue Net [Member] | Supplier Concentration Risk [Member] | Operator Customer One [Member]
Concentration risk percentage	20%		18%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | One Major Customer [Member]
Concentration risk percentage			64%		67%

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION - Summary of noncash investing and financing activities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Supplemental Cash Flow Information [Abstract]
Property and equipment purchases financed with common stock	$ 0	$ 991
Property And Equipment Purchases In Accounts Payable	9,701	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 ($) $ / shares in Units, $ in Millions	Apr. 06, 2022	Jun. 30, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Common stock, shares issued		41,918,820	40,865,336
Common stock, Par value		$ 0.0001	$ 0.0001
Common Stock Purchase Agreement and Registration Rights Agreement [Member] | Common Class A [Member]
Subsequent Event [Line Items]
Proceeds from common stock purchase agreement	$ 54.9