Condensed Consolidated Statements Of Stockholder's Equity - USD ($) $ in Thousands	Total	Support Com	Common Class B [Member]	Preferred Stock [Member]	Common Stock [Member]	Common Stock [Member] Support Com	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Support Com	Common Units [Member]	Common Units [Member] Common Class B [Member]	Preferred Units [Member]	Preferred Units [Member] Common Class B [Member]	Senior Priority Units [Member]	Senior Priority Units [Member] Common Class B [Member]	Total Members' Capital [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2019	$ 33,724															$ (20,350)
Members' Capital, Common Units, Beginning Balance (in units) at Dec. 31, 2019									750
Members' Capital, Beginning Balance at Dec. 31, 2019											$ 54,074				$ 54,074
Members' Capital, Preferred Units, Beginning Balance (in units) at Dec. 31, 2019											54,228
Conversion of Notes Payable to Senior Priority Units-Tranche 1	13,926												$ 13,926		13,926
Conversion of Notes Payable to Senior Priority Units-Tranche 1, Shares													10,000
Deemed distribution of Greenidge Coin, LLC preferred units	1,276										$ 1,276				1,276	(1,276)
Purchase and Contribution of Greenidge Coin, LLC Preferred Units	15,000										$ (16,276)		$ 16,276
Purchase and Contribution of Greenidge Coin, LLC Preferred Units, Shares											15,000
Issuance of shares for investor fee associated with successful completion of Merger	0
Issuance of warrants to advisor in connection with completion of Merger	0
Stock issued to purchase miners	0
Net (loss) income	(3,290)															(3,290)
Ending Balance at Dec. 31, 2020	$ 44,360			$ 0	$ 0		$ 0									(24,916)
Ending Balance (in shares) at Dec. 31, 2020				0	0
Members' Capital, Common Units, Ending Balance (in units) at Dec. 31, 2020	750								750
Members' Capital, Ending Balance at Dec. 31, 2020	$ 69,276								$ 0		$ 39,074		$ 30,202		69,276
Members' Capital, Preferred Units, Ending Balance (in units) at Dec. 31, 2020											39,228
Members' Capital, Senior Priority Units, Ending Balance (in units) at Dec. 31, 2020													10,000
Deemed distribution of Greenidge Coin, LLC preferred units	0
Purchase and Contribution of Greenidge Coin, LLC Preferred Units	0
Stock Issued During Period Shares New Issues				1,620,000		2,960,731
Shares issued to Support.com shareholders upon Merger, net of issuance costs	37,113	$ 91,588		$ 1			37,112	$ 91,588
Issuance of shares for investor fee associated with successful completion of Merger	17,826						17,826
Stock Issued During Period Shares for investor fee associated Merger					562,174
Issuance of warrants to advisor in connection with completion of Merger	8,779						8,779
Conversion of preferred stock				$ (1)	$ 1
Restricted shares award issuance, net of withholdings, shares					65,131
Restricted shares award issuance, net of withholdings	(894)						(894)
Stock Issued During Period, Shares, Conversion of Units				(1,620,000)	6,480,000
Shares issued upon exercise of warrants	2,155						2,155
Shares issued upon exercise of warrants, Share					344,800
Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock			$ 2,772		$ 3		72,045					$ (39,074)		$ (30,202)	$ (69,276)
Number Of Units And Notes Payable Contributed In Exchange For Common Stock					26,800,300							(39,228)		(10,000)
Number Of Common Units Contributed In Exchange For Common Stock					1,199,700					(750)
Proceeds from issuance of preferred stock, net of stock issuance costs				1,620,000		2,960,731
Proceeds from issuance of preferred stock, net of stock issuance costs	37,113	$ 91,588		$ 1			37,112	$ 91,588
Stock-based compensation expense	3,770						3,770
Proceeds from stock options exercised	1,000						1,000
Proceeds from stock options exercised (in shares)					160,000
Stock Issued During Period Shares Net Of Issuance Cost					2,132,500
Stock Issued During Period Value Net Of Issuance Cost	47,443						47,443
Stock issued to purchase miners	991						991
Stock issued to purchase miners (in shares)					160,000
Net (loss) income	(44,480)															(44,480)
Ending Balance at Dec. 31, 2021	212,423				$ 4		$ 281,815									$ (69,396)
Ending Balance (in shares) at Dec. 31, 2021					40,865,336
Members' Capital, Ending Balance at Dec. 31, 2021