Net Loss Per Share of Common Stock - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net loss	$ (12,772)	$ (9,345)
Weighted-average number of common shares used to compute basic and diluted net loss per share (in shares)	27,252,409	24,390,648
Net loss per share, basic and diluted (in dollars per share)	$ (0.47)	$ (0.38)