Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock Class A	Common Stock Class B	Additional Paid-In Capital	Accumulated Deficit	Total
Beginning balance at Dec. 31, 2020	$ 1	$ 1	$ 642,106	$ (578,133)	$ 63,975
Beginning balance (in shares) at Dec. 31, 2020	14,365,664	3,493,791
Conversion from Class B to Class A common stock	$ 0	$ 0
Conversion from Class B to Class A common stock (in shares)	100,000	(100,000)
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings	$ 0		0
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings (in shares)	191,595
Share-based compensation			2,366		2,366
Net income (loss)				(15,721)	(15,721)
Ending balance at Mar. 31, 2021	$ 1	$ 1	644,472	(593,854)	50,620
Ending balance (in shares) at Mar. 31, 2021	14,657,259	3,393,791
Beginning balance at Dec. 31, 2020	$ 1	$ 1	642,106	(578,133)	63,975
Beginning balance (in shares) at Dec. 31, 2020	14,365,664	3,493,791
Net income (loss)					(34,308)
Ending balance at Jun. 30, 2021	$ 2	$ 1	668,915	(612,441)	56,477
Ending balance (in shares) at Jun. 30, 2021	20,207,631	3,393,708
Beginning balance at Mar. 31, 2021	$ 1	$ 1	644,472	(593,854)	50,620
Beginning balance (in shares) at Mar. 31, 2021	14,657,259	3,393,791
Conversion from Class B to Class A common stock	$ 0	$ 0
Conversion from Class B to Class A common stock (in shares)	83	(83)
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings	$ 0		0
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings (in shares)	138,389
Share-based compensation			3,300		3,300
Net income (loss)				(18,587)	(18,587)
Value of common stock, gross	$ 1		21,143		21,144
Issuance of common stock, net of offering costs (in shares)	5,411,900
Ending balance at Jun. 30, 2021	$ 2	$ 1	668,915	(612,441)	56,477
Ending balance (in shares) at Jun. 30, 2021	20,207,631	3,393,708
Beginning balance at Dec. 31, 2021	$ 3		746,564	(666,514)	80,053
Beginning balance (in shares) at Dec. 31, 2021	31,694,400
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings	$ 0		0
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings (in shares)	120,981
Issuance of common stock upon exercise of warrants	$ 0		4,096		4,096
Issuance of common stock upon exercise of warrants (in shares)	488,055
Issuance of common stock from the Private Placements, net of issuance costs	$ 0		4,809		4,809
Issuance of common stock from the Private Placements, net of issuance costs (in shares)	357,143
Share-based compensation			2,233		2,233
Net income (loss)				(38,449)	(38,449)
Ending balance at Mar. 31, 2022	$ 3		757,702	(704,963)	52,742
Ending balance (in shares) at Mar. 31, 2022	32,660,579
Beginning balance at Dec. 31, 2021	$ 3		746,564	(666,514)	80,053
Beginning balance (in shares) at Dec. 31, 2021	31,694,400
Net income (loss)					(61,572)
Ending balance at Jun. 30, 2022	$ 3		780,481	(728,086)	52,398
Ending balance (in shares) at Jun. 30, 2022	34,795,727
Beginning balance at Mar. 31, 2022	$ 3		757,702	(704,963)	52,742
Beginning balance (in shares) at Mar. 31, 2022	32,660,579
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings	$ 0		0
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings (in shares)	191,487
Issuance of common stock upon exercise of warrants	$ 0		953		953
Issuance of common stock upon exercise of warrants (in shares)	235,329
Issuance of common stock from the Private Placements, net of issuance costs	$ 0		20,027		20,027
Issuance of common stock from the Private Placements, net of issuance costs (in shares)	1,708,332
Share-based compensation			1,799		1,799
Net income (loss)				(23,123)	(23,123)
Ending balance at Jun. 30, 2022	$ 3		$ 780,481	$ (728,086)	$ 52,398
Ending balance (in shares) at Jun. 30, 2022	34,795,727