Income Taxes (Schedule of Components of Deferred Income Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Income Tax Disclosure [Line Items]
Gross assets, current	$ 5,561	$ 7,053
Gross liabilities, current	(845)	(2,455)
Net current deferred income tax asset	4,716	4,598
Gross assets, noncurrent	9,025	2,423
Gross liabilities, noncurrent
Net noncurrent deferred income tax asset	9,025	2,423
Net deferred income tax asset	$ 13,741	$ 7,021