Net Loss per Share - Computation Of Basic And Diluted Net Loss Per Share Attributable To Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net loss – basic and diluted	$ (69,784)	$ (23,839)
Denominator:
Weighted-average common shares outstanding – basic and diluted	26,897,390	1,285,933
Net loss per share – basic and diluted	$ (2.59)	$ (18.54)