Net Loss Per Share Attributable to Common Stockholders - Computation of Numerators and Denominators Used in Basic and Diluted Net Income (Loss) Per Share Amounts (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net loss attributable to common stockholders - basic and diluted	$ (1,802)	$ 1,061	$ (11,338)	$ (11,640)	$ (17,351)	$ (20,321)	$ (12,079)	$ (49,312)
Denominator:
Weighted-average shares used in computing net loss per share, basic	3,947,995			3,306,215			3,807,955	3,299,357
Weighted-average shares used in computing net loss per share, diluted	3,947,995			3,306,215			3,807,955	3,299,357
Net loss attributable to common stockholders per share, basic	$ (0.46)			$ (3.52)			$ (3.17)	$ (14.95)
Net loss attributable to common stockholders per share, diluted	$ (0.46)			$ (3.52)			$ (3.17)	$ (14.95)