Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Stock Option Activity (Details)

v3.23.3
Stock Based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Share-based compensation      
Number of shares, Outstanding at beginning of period 2,025,542    
Number of shares, Granted 796,802    
Number of shares, Exercised (8,473)    
Number of shares, Forfeited, expired or cancelled (71,303)    
Number of shares, Outstanding at end of period 2,742,568   2,025,542
Number of shares, Exercisable at end of period 1,887,253    
Weighted Average Exercise Price Per Share, Outstanding at beginning of period $ 20.24    
Weighted Average Exercise Price Per Share, Granted 23.50    
Weighted Average Exercise Price Per Share, Exercised 18.29    
Weighted Average Exercise Price Per Share, Forfeited, expired or cancelled 36.51    
Weighted Average Exercise Price Per Share, Outstanding at end of period 20.77   $ 20.24
Weighted Average Exercise Price Per Share, Exercisable at end of period $ 19.45    
Weighted Average Contractual Remaining Term, Outstanding 6 years 6 months 3 days   6 years 1 month 6 days
Weighted Average Contractual Remaining Term, Exercisable 5 years 3 months 25 days    
Aggregate Intrinsic Value, Outstanding $ 6,799   $ 10,804
Aggregate Intrinsic Value, Exercisable 6,799    
Options exercised, aggregate intrinsic value 18 $ 2,800  
Common stock options      
Share-based compensation      
Unrecognized compensation expense related to stock options (in dollars) $ 9,400    
Weighted average period over which unrecognized compensation expense is expected to be recognized 2 years 7 months 9 days