Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning balance at Dec. 31, 2021	$ 15,631	$ 4	$ 424,826	$ (409,199)
Balance (in shares) at Dec. 31, 2021		37,816,794
Stock-based compensation	7,598		7,598
Issuance of common stock upon exercise of options	182		182
Issuance of common stock upon exercise of options (in shares)		18,015
Issuance of common stock upon vesting of RSUs (in shares)		4,555
Issuance of common stock upon financing	31,008		31,008
Issuance of common stock upon financing (in shares)		1,044,081
Shares tendered for withholding taxes	(89)		(89)
Net loss	(39,632)			(39,632)
Ending balance at Mar. 31, 2022	14,698	$ 4	463,525	(448,831)
Balance (in shares) at Mar. 31, 2022		38,883,445
Beginning balance at Dec. 31, 2022	$ 109,556	$ 4	705,885	(596,333)
Balance (in shares) at Dec. 31, 2022	43,498,617	43,498,617
Stock-based compensation	$ 12,943		12,943
Issuance of common stock upon exercise of options	$ 387		387
Issuance of common stock upon exercise of options (in shares)	28,876	28,876
Issuance of common stock upon vesting of RSUs (in shares)		20,973
Issuance of warrants	$ 1,011		1,011
Shares tendered for withholding taxes	(867)		(867)
Net loss	(11,218)			(11,218)
Ending balance at Mar. 31, 2023	$ 111,812	$ 4	$ 719,359	$ (607,551)
Balance (in shares) at Mar. 31, 2023	43,548,466	43,548,466