Income Taxes (Details) - Deferred income tax liabilities consisted of the following temporary differences - USD ($)	Sep. 30, 2021	Sep. 30, 2020
Deferred income tax liabilities consisted of the following temporary differences [Abstract]
Depreciation	$ (552,900)	$ (492,200)
Unrealized gain on investments
Total gross deferred tax liabilities	(552,900)	(492,200)
Vacation accrual	30,100	30,700
Federal benefit of state taxes	79,500	38,400
Total gross deferred tax assets	109,600	69,100
Total	$ (443,300)	$ (423,100)