Income Taxes (Summary of Provision (Benefit) for Income Taxes) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Federal	$ 2,522,000	$ 315,050	$ (3,642,000)
State	438,000	19,000
Current	2,960,000	334,050	(3,642,000)
Federal	845,000	(824,000)	(3,611,000)
State	397,000	(161,101)	(1,036,000)
Deferred	1,242,000	(985,101)	(4,647,000)
Provision (benefit) for income taxes	$ 4,202,000	$ (651,051)	$ (8,289,000)