Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock Class A Private Placement	Common Stock Class A	Common Stock Class B	Additional Paid-In Capital Private Placement	Additional Paid-In Capital	Accumulated Deficit	Private Placement	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)								(61,944)
Ending balance at Sep. 30, 2021		$ 2			674,046	(640,077)		33,971
Ending balance (in shares) at Sep. 30, 2021		24,052,784
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 issuance 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
Conversion from Class B to Class A common stock		$ 0	$ (1)					(1)
Conversion from Class B to Class A common stock (in shares)		3,393,708	(3,393,708)
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings		$ 0
Issuance of common stock upon exercise of stock options and vesting of restricted stock, net of tax withholdings (in shares)		151,445
Issuance of common stock from the Private Placements, net of issuance costs	$ 0			$ 2,799			$ 2,799
Issuance of common stock from the Private Placements, net of issuance costs (in shares)	300,000
Share-based compensation					2,332			2,332
Net income (loss)						(27,636)		(27,636)
Ending balance at Sep. 30, 2021		$ 2			674,046	(640,077)		33,971
Ending balance (in shares) at Sep. 30, 2021		24,052,784
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)								(87,322)
Ending balance at Sep. 30, 2022		$ 3			782,125	(753,836)		28,292
Ending balance (in shares) at Sep. 30, 2022		34,955,828
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
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)		160,101
Share-based compensation					1,644			1,644
Net income (loss)						(25,750)		(25,750)
Ending balance at Sep. 30, 2022		$ 3			$ 782,125	$ (753,836)		$ 28,292
Ending balance (in shares) at Sep. 30, 2022		34,955,828