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Commitments and Contingencies (Leases) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Leases [Abstract]      
2015 $ 1,791,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent    
2016 1,694,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears    
2017 1,640,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears    
2018 1,529,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears    
2019 1,509,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears    
Thereafter 6,105,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter    
Total minimum lease payments 14,268,000us-gaap_OperatingLeasesFutureMinimumPaymentsDue    
Rent Expense $ 2,700,000us-gaap_LeaseAndRentalExpense $ 2,400,000us-gaap_LeaseAndRentalExpense $ 1,900,000us-gaap_LeaseAndRentalExpense