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, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net loss attributable to common stockholders	$ (5,182)	$ (3,686)
Weighted average number of shares of common stock	9,187	1,070
Basic and diluted net loss per share	$ (0.56)	$ (3.44)