Income Taxes (Details) - The deferred income tax liabilities consisted of the following temporary differences - USD ($)	Sep. 30, 2018	Sep. 30, 2017
The deferred income tax liabilities consisted of the following temporary differences [Abstract]
Depreciation	$ (566,100)	$ (929,300)
Unrealized gain on investments	(33,200)
Total gross deferred tax liabilities	(599,300)	(929,300)
Vacation accrual	24,400	36,800
Federal benefit of state taxes	54,600	81,900
Total gross deferred tax assets	79,000	118,700
Total	$ (520,300)	$ (810,600)