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Note L - Off-balance Sheet Arrangements (Details) - Future Minimum Annual Lease Payments (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Future Minimum Annual Lease Payments [Abstract]  
2015 $ 7,013us-gaap_OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear
2016 9,844us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2017 6,162us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
2018 188us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
Total future minimum lease payments $ 23,207us-gaap_OperatingLeasesFutureMinimumPaymentsDue