Commitments and Contingencies - Employee Benefit (Details) - USD ($)	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Commitments and Contingencies.
Maximum employee annual contributions (as a percent)	100.00%
Maximum employer annual contributions (as a percent)	100.00%
Maximum employer match (as a percent)	3.00%
Expense related to matching contribution	$ 83,266	$ 40,305