Net Loss per Share - Potential dilutive securities excluded from the computation of diluted net loss per share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net Loss per Share
Warrants to purchase common stock	1,464	1,464	1,464	1,464
Unvested restricted stock units	11,083	15,223	11,083	17,069
Stock options to purchase common stock	493,767	386,957	493,767	312,157
Total	506,314	403,644	506,314	330,690