Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Additional information (Details)

v3.22.4
Stock-Based Compensation - Additional information (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Stock-Based Compensation    
Unrecognized compensation costs $ 2,500  
Weighted-average amortization period 1 year 4 months 24 days  
Intrinsic value of stock options exercised $ 400 $ 200
Weighted average grant date fair value of option granted $ 1.40 $ 3.84
Stock options granted to consultant for future services 225,000  
Unvested restricted stock    
Stock-Based Compensation    
Weighted-average amortization period 0 years  
Fair value of restricted stock vested $ 20 $ 100
2016 Plan    
Stock-Based Compensation    
Number of common stock authorized 291,667  
Common shares were available for future grants 147,041  
2019 Plan    
Stock-Based Compensation    
Number of common stock authorized 6,018,136  
Common shares were available for future grants 697,893  
Minimum    
Stock-Based Compensation    
Vesting period (in years) 1 year  
Maximum    
Stock-Based Compensation    
Vesting period (in years) 4 years  
Expiration period (in years) 10 years