Condensed Consolidated Statements of Stockholders’ Equity (Deficit) - USD ($) $ in Thousands	Total	Previously Reported	Revision of Prior Period, Adjustment	Common Stock	Common Stock Previously Reported	Common Stock Revision of Prior Period, Adjustment	Additional Paid-in Capital	Additional Paid-in Capital Previously Reported	Additional Paid-in Capital Revision of Prior Period, Adjustment	Accumulated Deficit	Accumulated Deficit Previously Reported	Accumulated Other Comprehensive (Loss) Income	Accumulated Other Comprehensive (Loss) Income Previously Reported	Accumulated Other Comprehensive (Loss) Income Revision of Prior Period, Adjustment
Beginning balance (in shares) at Dec. 31, 2020	0	2,034,751	(2,034,751)
Beginning balance at Dec. 31, 2020	$ 0	$ 17,560	$ (17,560)
Ending balance (in shares) at Mar. 31, 2021	0
Ending balance at Mar. 31, 2021	$ 0
Beginning balance (in shares) at Dec. 31, 2020				58,621,042	37,881,435	20,739,607
Beginning balance at Dec. 31, 2020	(13,237)	$ (30,797)	$ 17,560	$ 6	$ 4	$ 2	$ 20,779	$ 3,221	$ 17,558	$ (34,037)	$ (34,037)	$ 15	$ 15	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(15,022)									(15,022)
Other comprehensive income, net of tax	(131)											(131)
Cashless/ exercise of options (in shares)				54,717
Stock-based compensation	41,963						41,963
Accrued dividends on redeemable convertible preferred stock	(19)						(19)
PIPE issuance (in shares)				12,500,000
PIPE issuance	125,000			$ 1			124,999
Merger financing (in shares)				38,194,390
Merger financing	309,999			$ 4			309,995
Consideration to existing shareholders of Former CarLotz, net of accrued dividends	(62,693)						(62,693)
Transaction costs and advisory fees	(47,579)						(47,579)
Settlement of redeemable convertible preferred stock tranche obligation	2,832						2,832
Cash consideration paid to Former Carlotz optionholders	(2,465)						(2,465)
Earnout liability	(74,284)						(74,284)
Merger warrants liability	(39,025)						(39,025)
KAR/AFC warrant exercise (in shares)				3,546,984
KAR/AFC note payable conversion	3,625						3,625
KAR/AFC warrant exercise (in shares)				752,927
KAR/AFC warrant exercise	144						144
Ending balance (in shares) at Mar. 31, 2021				113,670,060
Ending balance at Mar. 31, 2021	$ 229,108			$ 11			278,272			(49,059)		(116)
Beginning balance (in shares) at Dec. 31, 2020	0	2,034,751	(2,034,751)
Beginning balance at Dec. 31, 2020	$ 0	$ 17,560	$ (17,560)
Ending balance (in shares) at Jun. 30, 2021	0
Ending balance at Jun. 30, 2021	$ 0
Beginning balance (in shares) at Dec. 31, 2020				58,621,042	37,881,435	20,739,607
Beginning balance at Dec. 31, 2020	(13,237)	$ (30,797)	$ 17,560	$ 6	$ 4	$ 2	20,779	3,221	$ 17,558	(34,037)	(34,037)	15	15	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(22,227)
Other comprehensive income, net of tax	(75)
Ending balance (in shares) at Jun. 30, 2021				113,670,060
Ending balance at Jun. 30, 2021	$ 225,663			$ 11			281,976			(56,264)		(60)
Beginning balance (in shares) at Mar. 31, 2021	0
Beginning balance at Mar. 31, 2021	$ 0
Ending balance (in shares) at Jun. 30, 2021	0
Ending balance at Jun. 30, 2021	$ 0
Beginning balance (in shares) at Mar. 31, 2021				113,670,060
Beginning balance at Mar. 31, 2021	229,108			$ 11			278,272			(49,059)		(116)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(7,205)									(7,205)
Other comprehensive income, net of tax	56											56
Stock-based compensation	3,704						3,704
Ending balance (in shares) at Jun. 30, 2021				113,670,060
Ending balance at Jun. 30, 2021	$ 225,663			$ 11			281,976			(56,264)		(60)
Beginning balance (in shares) at Dec. 31, 2021		0
Beginning balance at Dec. 31, 2021		$ 0
Ending balance (in shares) at Mar. 31, 2022	0
Ending balance at Mar. 31, 2022	$ 0
Beginning balance (in shares) at Dec. 31, 2021	113,996,401				113,996,401
Beginning balance at Dec. 31, 2021	$ 213,511	$ 213,511			$ 11			287,509			(73,916)		(93)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(24,836)									(24,836)
Other comprehensive income, net of tax	(73)											(73)
Cashless/ exercise of options (in shares)				44,424
Stock-based compensation	1,684						1,684
Issuance of common stock to settle vested restricted stock units (in shares)				70,971
Issuance of common stock to settle vested restricted stock units	(2)						(2)
Ending balance (in shares) at Mar. 31, 2022				114,111,796
Ending balance at Mar. 31, 2022	$ 190,284			$ 11			289,191			(98,752)		(166)
Beginning balance (in shares) at Dec. 31, 2021		0
Beginning balance at Dec. 31, 2021		$ 0
Ending balance (in shares) at Jun. 30, 2022	0
Ending balance at Jun. 30, 2022	$ 0
Beginning balance (in shares) at Dec. 31, 2021	113,996,401				113,996,401
Beginning balance at Dec. 31, 2021	$ 213,511	$ 213,511			$ 11			$ 287,509			$ (73,916)		$ (93)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(59,741)
Other comprehensive income, net of tax	$ (50)
Cashless/ exercise of options (in shares)	155,782
Ending balance (in shares) at Jun. 30, 2022	113,996,401			114,479,662
Ending balance at Jun. 30, 2022	$ 156,609			$ 11			290,398			(133,657)		(143)
Beginning balance (in shares) at Mar. 31, 2022	0
Beginning balance at Mar. 31, 2022	$ 0
Ending balance (in shares) at Jun. 30, 2022	0
Ending balance at Jun. 30, 2022	$ 0
Beginning balance (in shares) at Mar. 31, 2022				114,111,796
Beginning balance at Mar. 31, 2022	190,284			$ 11			289,191			(98,752)		(166)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(34,905)									(34,905)
Other comprehensive income, net of tax	$ 23											23
Cashless/ exercise of options (in shares)	104,818
Cashless/exercise of options	$ 66						66
Stock-based compensation	1,141						1,141
Issuance of common stock to settle vested restricted stock units (in shares)				263,048
Issuance of common stock to settle vested restricted stock units	$ 0						0
Ending balance (in shares) at Jun. 30, 2022	113,996,401			114,479,662
Ending balance at Jun. 30, 2022	$ 156,609			$ 11			$ 290,398			$ (133,657)		$ (143)