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Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash paid for:
Interest	$ 11	$ 47
Income taxes for continuing operations	598	1,306
Income taxes for discontinued operations		5
Total	609	1,358
Income Taxes
Tax expense (benefit)	$ 2,043	$ (944)
Effective tax rate (as a percent)	42.60%	28.00%

- 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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