Net Loss Per Share of Common Stock - Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net loss	$ (12,242)	$ (12,772)
Weighted-average shares used to compute basic and diluted net loss per share	32,691,578	27,252,409
Net loss per share, basic and diluted (in dollars per share)	$ (0.37)	$ (0.47)