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) - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Number of Options    
Outstanding at beginning of year (in shares) 84,722  
Granted (in shares) 764,400  
Expired (in shares) (417)  
Forfeited (in shares) (17,452)  
Outstanding at end of year (in shares) 831,253 84,722
Exercisable and vested at the end of year (in shares) 149,764  
Weighted Average Exercise Price    
Outstanding at beginning of year (in usd per share) $ 36.90  
Granted (in usd per share) 1.11  
Expired (in usd per share) 86.42  
Forfeited (in usd per share) 6.05  
Outstanding at end of year (in usd per share) 4.61 $ 36.90
Vested and expected to vest at end of year (in usd per share) $ 16.58  
Weighted Average Remaining Term in Years    
Outstanding 9 years 7 months 6 days 9 years 7 months 2 days
Exercisable and vested at the end of year 9 years 9 months 10 days