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Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2008
Computed expectedz tax expense	$ 4,194	$ 5,323	$ 2,347
State income taxes	140	140	105
Stock option disqualifying dispositions and other permanent differences	40	(60)	546
Total income tax expense	$ 4,374	$ 5,403	$ 2,998	$ 2,000

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 state and local tax law to relevant amounts of taxable Income or Loss from continuing operations.

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X

- Definition

The tax effects of employee stock option transactions that are recognized differently for financial reporting and tax purposes, occurring during the period and charged or credited directly to shareholders' equity.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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The sum of state and local current and deferred income tax expense or benefit attributable to continuing operations.

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