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Summary of Significant Accounting Policies - Net Loss Per Share (Details) - shares
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Anti-dilutive securities    
Anti-dilutive securities excluded from the calculation of diluted net loss per share (in shares) 5,195,967 42,611
Common stock warrants    
Anti-dilutive securities    
Anti-dilutive securities excluded from the calculation of diluted net loss per share (in shares) 5,017,410 36,691
Unvested restricted stock units    
Anti-dilutive securities    
Anti-dilutive securities excluded from the calculation of diluted net loss per share (in shares) 135,047 142
Common stock options    
Anti-dilutive securities    
Anti-dilutive securities excluded from the calculation of diluted net loss per share (in shares) 43,510 5,778