Income Taxes (Summary of Provision (Benefit) for Income Taxes) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Federal	$ 315,050	$ (3,642,000)	$ (1,388,000)
State	19,000		19,000
Current	334,050	(3,642,000)	(1,369,000)
Federal	(824,000)	(3,611,000)	(9,763,000)
State	(161,101)	(1,036,000)	(2,349,000)
Deferred	(985,101)	(4,647,000)	(12,112,000)
Provision (benefit) for income taxes	$ (651,051)	$ (8,289,000)	$ (13,481,000)