Summary of Significant Accounting Policies - Summary of Basic and Diluted Net Loss per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net loss	$ (7,802)	$ (4,232)
Accretion of redeemable convertible preferred stock		(85)
Net loss attributable to common stockholders	$ (7,802)	$ (4,317)
Denominator:
Weighted-average common shares outstanding—basic and diluted	12,945,546	230,860
Net loss per share attributable to common stockholders—basic and diluted	$ (0.60)	$ (18.70)