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Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Cash paid for:
Interest	$ 617	$ 411	$ 664	$ 810
Income taxes	222	344	1,534	998
Total	839	755	2,198	1,808
Income Taxes
Tax expense(benefit)	$ 3,171	$ 2,513	$ 2,065	$ (1,186)
Effective tax rate (as a percent)			60.00%	37.10%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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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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