Income Taxes (Summary of Provision (Benefit) for Income Taxes) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Federal	$ 204,000	$ 314,000	$ 2,166,000
State	20,000		83,000
Current	224,000	314,000	2,249,000
Federal	(13,240,000)	390,000	(8,597,000)
State	277,000	(15,000)	(1,363,000)
Deferred	(12,963,000)	375,000	(9,960,000)
Provision (benefit) for income taxes	$ (12,739,000)	$ 689,000	$ (7,711,000)