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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%

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