Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Stock options (Details)

v3.21.4
Stock-Based Compensation - Stock options (Details) - USD ($)
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Stock Options    
Outstanding, Beginning balance 6,190,790 6,375,966
Granted 1,758,599 444,536
Exercised (47,052) (31,731)
Forfeited (505,183) (597,981)
Outstanding, Ending balance 7,397,154 6,190,790
Exercisable 5,242,852  
Weighted Average Exercise Price per Share    
Outstanding, Beginning balance $ 2.76 $ 2.70
Granted 5.45 7.38
Exercised 2.39 5.42
Forfeited 6.80 5.42
Outstanding, Ending balance 3.13 $ 2.76
Exercisable $ 2.19  
Weighted Average remaining contractual term (years) and Aggregate Intrinsic Value    
Outstanding 7 years 6 months  
Exercisable 6 years 9 months 18 days  
Outstanding $ 11,994,910  
Exercisable $ 11,952,755