Net Loss (Income) Per Share - Summary of Computation of Basic and Diluted Net Loss (Income) 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	$ (3,565)	$ (5,093)
Weighted-average shares used to compute basic and diluted net loss per share	17,868	15,010
Net loss attributable to common stockholders per share, basic and diluted	$ (0.20)	$ (0.34)