Net Loss Per Share - Schedule of Basic and Diluted Net Loss per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Net loss	$ (805)	$ (14,975)	$ (18,772)	$ (40,243)
Weighted-average number of shares outstanding used in computing net loss per share, basic and diluted	17,090,050	15,134,422	15,903,517	12,971,641
Net loss per share, basic and diluted	$ (0.05)	$ (0.99)	$ (1.18)	$ (3.10)