Net Loss per Share - Reconciliation of Numerator and Denominator Used in Calculation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss	$ (6,674)	$ (5,182)
Weighted average number of shares of common stock	9,967	9,187
Basic and diluted net loss per share	$ (0.67)	$ (0.56)