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Goodwill and Intangible Assets (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]      
Amortization of Intangible Assets $ 334,000us-gaap_AmortizationOfIntangibleAssets $ 335,000us-gaap_AmortizationOfIntangibleAssets $ 335,000us-gaap_AmortizationOfIntangibleAssets
2015 300,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
2016 300,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
2017 300,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
2018 $ 300,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
Remaining amortization period 3 years 10 months 24 days    
Customer Relationships [Member]      
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]      
Estimated useful life 12 years