Annual report pursuant to Section 13 and 15(d)

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

v3.21.2
Share-based Compensation (Summary of Stock Options Outstanding and Exercisable) (Details) - Stock Option [Member]
12 Months Ended
Sep. 30, 2021
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of Shares Outstanding at Beginning of Period | shares 8,599,000
Number of Shares Granted | shares 3,568,625
Number of Shares Exercised | shares (1,112,102)
Number of Shares Forfeited | shares (454,843)
Number of Shares Outstanding at End of Period | shares 10,600,680
Number of Shares Exercisable at End of Period | shares 5,924,444
Weighted Average Exercise Price Per Share, Outstanding at Beginning of Period | $ / shares $ 1.67
Weighted Average Exercise Price Per Share, Granted | $ / shares 5.62
Weighted Average Exercise Price Per Share, Exercised | $ / shares 1.60
Weighted Average Exercise Price Per Share, Forfeited | $ / shares 5.78
Weighted Average Exercise Price Per Share, Outstanding at End of Period | $ / shares 2.84
Weighted Average Exercise Price Per Share, Exercisable at End of Period | $ / shares $ 1.65
Weighted Average Remaining Contractual Term, Outstanding at End of Period 7 years 8 months 12 days
Weighted Average Remaining Contractual Term, Exercisable at End of Period 6 years 9 months 29 days
Aggregate Intrinsic Value Outstanding at End of Period | $ $ 64,473,535
Aggregate Intrinsic Value Exercisable at End of Period | $ $ 40,743,351