Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Numerator:
Net loss	$ (17,080)	$ (2,876)	$ (21,558)	$ (4,648)	$ (17,680)
Denominator:
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted	11,720,530	11,614,754	11,684,374	11,614,551
Net loss per share attributable to common stockholders, basic and diluted	$ (1.46)	$ (0.25)	$ (1.85)	$ (0.40)