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Summary of Significant Accounting Policies - Securities (Details) - shares
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Class of Stock [Line Items]    
Anti-dilutive securities excluded from computation (in shares) 3,052,363 2,883,395
Warrants to purchase common stock    
Class of Stock [Line Items]    
Anti-dilutive securities excluded from computation (in shares) 409,108 409,108
Common stock options    
Class of Stock [Line Items]    
Anti-dilutive securities excluded from computation (in shares) 1,820,555 2,067,057
Restricted stock units    
Class of Stock [Line Items]    
Anti-dilutive securities excluded from computation (in shares) 805,496 403,100
Employee stock purchase plan    
Class of Stock [Line Items]    
Anti-dilutive securities excluded from computation (in shares) 17,204 4,130