Basis of Presentation and Summary of Significant Accounting Policies - Dilutive (Details) - shares	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Performance-based stock units
Antidilutive securities
Antidilutive securities excluded from computation of earnings per share	2,470	2,470
Performance-based stock options
Antidilutive securities
Antidilutive securities excluded from computation of earnings per share	700,000	1,000,000
Stock options
Antidilutive securities
Antidilutive securities excluded from computation of earnings per share	20,124,581	16,110,015
Common stock warrants
Antidilutive securities
Antidilutive securities excluded from computation of earnings per share	6,812,794	5,128,829