Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of stock option activity (Details)

v3.22.2.2
Stock-Based Compensation - Summary of stock option activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Number of shares        
Outstanding at the beginning 2,706,115 2,906,948 2,400,315  
Granted 80,000 350,000 552,000  
Forfeited (131,536) (550,833) (45,367)  
Outstanding at the end 2,654,579 2,706,115 2,906,948 2,400,315
Options vested and exercisable 1,064,852      
Weighted average exercise price        
Outstanding at the beginning (in dollars per share) $ 5.20 $ 5.54 $ 6.28  
Granted (in dollars per share) 0.69 0.52 3.00  
Forfeited (in dollars per share) (11.31) (3.76) (14.05)  
Outstanding at the end (in dollars per share) 4.86 $ 5.20 $ 5.54 $ 6.28
Options vested and exercisable $ 3.84      
Weighted average remaining remaining term (in years)        
Outstanding 7 years 6 months 7 years 8 months 9 days 8 years 7 years 8 months 15 days
Granted (in years) 10 years 10 years 10 years  
Forfeited (in years) 0 years 0 years 9 years 1 month 6 days  
Options vested and exercisable 5 years 6 months      
Aggregate intrinsic value        
Outstanding at the beginning (in dollars) $ 174 $ 1,006 $ 4,224  
Outstanding at the end (in dollars) 278 $ 174 $ 1,006 $ 4,224
Options vested and exercisable $ 196