Income Taxes (Details of Income Tax Expense) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Current income taxes:
Federal	$ 1,841,124	$ 1,698,215
State	342,233	268,488
Total current income taxes	2,183,357	1,966,703
Deferred income taxes:
Federal	644,682	272,079
State	477,621	411,949
Total deferred income taxes	1,122,303	684,028
Total income tax expense	$ 3,305,660	$ 2,650,731