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Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Income Taxes [Line Items]    
Amounts of tax benefits that would affect effective tax rate if recognized $ 914 $ 861
Income tax accrued interest 50 41
Unrecognized tax benefits 1,277 1,208
Statute of limitations $ 251