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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Income Taxes |  |  |  |
Recognized income tax expense | $ 156 | $ 125 | $ 502 | $ 405

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