Income Taxes (Changes In Valuation Allowance For Deferred Tax Assets) (Details) - Valuation Allowance of Deferred Tax Assets [Member] - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at October 1	$ 2,575,000	$ 2,591,000	$ 2,147,000
Charged to Costs and Expenses	(276,000)	(16,000)	432,000
Deductions/Other			12,000
Balance at September 30	$ 2,299,000	$ 2,575,000	$ 2,591,000