Net Loss Per Share - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net loss	$ (9,587)	$ (6,446)	$ (5,168)	$ (2,551)	$ (3,236)	$ (4,119)	$ (21,201)	$ (9,906)
Denominator:
Weighted-average common shares outstanding	776,159			764,408			769,766	764,408
Net loss per share, basic and diluted	$ (12.35)			$ (3.34)			$ (27.54)	$ (12.96)