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Leases (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Operating Leased Assets [Line Items]  
Operating Leases, Future Minimum Payments Due, Next Twelve Months $ 1,041us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
Operating Leases, Future Minimum Payments, Due in Two Years 695us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
Operating Leases, Future Minimum Payments, Due in Three Years 694us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
Operating Leases, Future Minimum Payments, Due in Four Years 619us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
Operating Leases, Future Minimum Payments, Due in Four and Five Years [Abstract] 619us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
Operating Leases, Future Minimum Payments, Due Thereafter 674us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter
Operating Leases, Future Minimum Payments Due $ 4,342us-gaap_OperatingLeasesFutureMinimumPaymentsDue