Net Loss per Share - Computation of Basic and Diluted Net Loss Per Share of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (9,697)	$ (7,062)	$ (17,428)	$ (14,164)
Weighted-average shares used in computing net loss per share, basic	27,378,507	27,355,454	27,373,459	27,346,141
Weighted-average shares used in computing net loss per share, diluted	27,378,507	27,355,454	27,373,459	27,346,141
Net loss per share, basic	$ (0.35)	$ (0.26)	$ (0.64)	$ (0.52)
Net loss per share, diluted	$ (0.35)	$ (0.26)	$ (0.64)	$ (0.52)