Net Loss per Share - Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss	$ (7,329)	$ (8,371)
Weighted average common shares used in net loss per share attributable to common stockholders, basic and diluted	30,805,804	19,417,038
Basic and diluted net loss per common share outstanding	$ (0.24)	$ (0.43)