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Income Taxes - Provision for income taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Income Tax Disclosure [Abstract]
Federal, current	$ 2,834	$ 3,249	$ 3,162
State, current	437	566	119
[CurrentIncomeTaxExpenseBenefit]	3,271	3,815	3,281
Deferred	1,538	483	682
Provision for income taxes	4,809	4,298	3,963
Federal, computed at statutory rate	4,256	3,864	3,760
State income taxes (net of Federal income tax benefit)	562	473	460
Other, net	$ (9)	$ (39)	$ (257)

X

- Definition

The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable Income or Loss from continuing operations.

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The net amount of deferred income taxes and income tax credits less the tax benefit from exercise of stock options.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to pretax Income or Loss from continuing operations; income tax expense or benefit may include interest and penalties on tax uncertainties based on the entity's accounting policy.

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