Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Share-based Compensation (Summary of Stock Options Outstanding and Exercisable) (Details) - Stock Option [Member] - USD ($)
6 Months Ended
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of Shares Outstanding at Beginning of Period 7,027,989
Number of Shares Granted 2,228,827
Number of Shares Exercised (436,748)
Number of Shares Forfeited (176,028)
Number of Shares Outstanding at End of Period 8,644,040
Number of Shares Exercisable at End of Period 3,342,581
Weighted Average Exercise Price Per Share, Outstanding at Beginning of Period $ 1.58
Weighted Average Exercise Price Per Share, Granted 1.97
Weighted Average Exercise Price Per Share, Exercised 1.67
Weighted Average Exercise Price Per Share, Forfeited 1.51
Weighted Average Exercise Price Per Share, Outstanding at End of Period 1.68
Weighted Average Exercise Price Per Share, Exercisable at End of Period $ 1.48
Weighted Average Remaining Contractual Term, Outstanding at End of Period 8 years 3 months
Weighted Average Remaining Contractual Term, Exercisable at End of Period 7 years 4 months 10 days
Aggregate Intrinsic Value, Outstanding at End of Period $ 13,781,911
Aggregate Intrinsic Value, Exercisable at End of Period $ 5,973,380