Income Taxes (Details) - USD ($)	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Current provision (benefit):
Federal	$ 1,541,726	$ 522,473		$ 95,818
State	56,288	277,991		9,911
Total current provision (benefit)	1,598,014	800,464		105,729
Deferred provision (benefit)
Federal	28,994	998,585		(754,995)
State	(19,491)	18,782		(438,517)
Total deferred provision (benefit)	9,503	1,017,367		(1,193,511)
Total current and deferred provision (benefit)	$ 1,607,517	$ 1,817,831	$ (1,087,783)	$ (1,087,783)
Reconciliation of the statutory federal rate to the Company's effective income tax rate
U.S. Federal statutory tax rate (as a percent)	21.00%	21.00%		21.00%
State income taxes, net of federal benefit (as a percent)	0.40%	11.80%		0.60%
Permanent items (as a percent)		0.10%		0.20%
Research and development tax credits (as a percent)	(0.80%)	(0.10%)		(0.60%)
Valuation allowance (as a percent)	(0.10%)	(6.40%)		(47.90%)
Change in unrecognized tax benefits (as a percent)	0.10%	(1.50%)		(0.70%)
123R cancellations and forfeitures (as a percent)	0.40%	0.30%		0.00%
Other (as a percent)	0.10%	(0.50%)		0.00%
Effective income tax rate (as a percent)	21.10%	24.70%		(27.40%)