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Commitments and Contingencies (Future Minimum Rental Commitments Under Capital Leases) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Future minimum rental commitments under capital leases  
2015 $ 1,204us-gaap_CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear
2016 464us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears
2017 72us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears
Less - interest on capital leases 56us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments
Capital Lease Commitments $ 1,684us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments