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Goodwill and Intangible Assets - Future Amortization Expense (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]    
2015 $ 320us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths  
2016 137us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 137us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 137us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 137us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
Thereafter 476us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Total $ 1,344us-gaap_FiniteLivedIntangibleAssetsNet $ 1,680us-gaap_FiniteLivedIntangibleAssetsNet