Quarterly report pursuant to Section 13 or 15(d)

Share-based Compensation (Summary of Stock Options Outstanding and Exercisable) (Details)

v3.24.1.u1
Share-based Compensation (Summary of Stock Options Outstanding and Exercisable) (Details)
 6 Months Ended
Mar. 31, 2024
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of Shares Exercised 0
Stock Option [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of Shares Outstanding at Beginning of Period 17,367,643
Number of Shares Granted 437,500
Number of Shares Forfeited and expired (782,705)
Number of Shares Outstanding at End of Period 17,022,438
Number of Shares Exercisable at End of Period 11,870,183
Weighted Average Exercise Price Per Share Outstanding at Beginning of Period | $ / shares $ 5.28
Weighted Average Exercise Price Per Share Granted | $ / shares 0.67
Weighted Average Exercise Price Per Share, Forfeited and expired | $ / shares 9.07
Weighted Average Exercise Price Per Share Outstanding at End of Period | $ / shares 4.99
Weighted Average Exercise Price Per Share Exercisable at End of Period | $ / shares $ 4.34
Weighted Average Remaining Contractual Term (years) Outstanding at End of Period 6 years 6 months 10 days
Weighted Average Remaining Contractual Term (years) Exercisable at End of Period 5 years 7 months 24 days
Aggregate Intrinsic Value Outstanding at End of Period | $ $ 23,750