Net Loss Per Share - Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net loss	$ (8,028)	$ (10,308)
Net loss attributable to common stockholders	$ (8,028)	$ (10,308)
Denominator:
Weighted average common shares outstanding, basic and diluted	22,436,938	20,333,398
Net loss per share attributable to common stockholders, basic and diluted	$ (0.36)	$ (0.51)