Net Loss Per Share Attributable to Common Stockholders - Summary of Computation of Net Loss Attributable To Common Stockholders (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	Dec. 31, 2022
Numerator:
Net loss and comprehensive loss	$ (5,641)	$ (8,467)	$ (11,867)	$ (19,362)	$ (11,718)	$ (28,758)	$ (25,975)	$ (59,838)
Accretion on Series A convertible preferred stock	(1,319)			0			(3,298)	0
Net loss attributable to common stockholders, basic	(6,960)			(19,362)			(29,273)	(59,838)
Net loss attributable to common stockholders, diluted	$ (6,960)			$ (19,362)			$ (29,273)	$ (59,838)
Denominator:
Weighted-average number of shares outstanding used to compute net loss per share attributable to common stockholders, basic (in shares)	8,310,965			7,983,948			8,212,268	7,928,263
Weighted-average number of shares outstanding used to compute net loss per share attributable to common stockholders, diluted (in shares)	8,310,965			7,983,948			8,212,268	7,928,263
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.84)			$ (2.42)			$ (3.56)	$ (7.55)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.84)			$ (2.42)			$ (3.56)	$ (7.55)
Series A Convertible Preferred Stock
Denominator:
Temporary equity, shares outstanding (in shares)	30,000			0			30,000	0	0