Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (5,720)	$ (7,751)	$ (7,536)	$ 2,226	$ (13,148)	$ (12,931)	$ (21,007)	$ (23,853)
Convertible and redeemable series A-2 preferred stock dividend	(4,100)			(4,100)			(12,300)	(12,300)
Net loss attributable to common stockholders -basic and diluted	$ (9,820)			$ (1,874)			$ (33,307)	$ (36,153)
Weighted-average common shares outstanding basic	29,691			26,220			29,677	25,798
Weighted Average Number of Shares Outstanding, Diluted	29,691			26,220			29,677	25,798
Net loss per share attributable to common stockholders basic	$ (0.33)			$ (0.07)			$ (1.12)	$ (1.40)
Net loss per share attributable to common stockholder diluted	$ (0.33)			$ (0.07)			$ (1.12)	$ (1.40)