Stock-Based Compensation - Option activity (Details) - USD ($)	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Weighted Average Remaining Contractual Term (Years)
Stock-based compensation expense	$ 5,385,124	$ 5,547,019
Employee Stock Option
Number of Shares
Balance, Beginning (in shares)	1,197,774
Granted (in shares)	817,729
Forfeited (in shares)	(59,212)
Expired (in shares)	(9,645)
Balance, Ending (in shares)	1,946,646	1,197,774
Vested and exercisable (in shares)	1,006,079
Weighted Average Exercise Price
Balance, Beginning (in dollars per share)	$ 28.72
Granted (in dollars per share)	6.69
Forfeited (in dollars per share)	26.27
Expired (in dollars per share)	34.5
Balance, Ending (in dollars per share)	19.51	$ 28.72
Vested and exercisable (in dollars per share)	$ 26.84
Weighted Average Remaining Contractual Term (Years)
Balance-Remaining contractual term	7 years 8 months 12 days
Vested and exercisable -Remaining contractual term	6 years 6 months
Aggregate intrinsic value, Outstanding	$ 53,985
Aggregate intrinsic value, Vested and exercisable	$ 53,985
Grant date fair value of options (in dollars per share)	$ 6.04	$ 19.4
Performance-based stock options
Number of Shares
Balance, Beginning (in shares)	35,000
Granted (in shares)	634,000
Forfeited (in shares)	(2,500)
Balance, Ending (in shares)	666,500	35,000
Vested and exercisable (in shares)	35,000
Weighted Average Exercise Price
Balance, Beginning (in dollars per share)	$ 28.8
Granted (in dollars per share)	6.78
Forfeited (in dollars per share)	6.78
Balance, Ending (in dollars per share)	7.94	$ 28.8
Vested and exercisable (in dollars per share)	$ 28.8
Weighted Average Remaining Contractual Term (Years)
Balance-Remaining contractual term	9 years 3 months 18 days
Vested and exercisable -Remaining contractual term	6 years 3 months 18 days
Grant date fair value of options (in dollars per share)	$ 6.52	$ 18.2
Stock-based compensation expense	$ 0