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Note 14 - Employee Benefit Plans (Details) - Components of Pension (Income) Expense (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Components of Pension (Income) Expense [Abstract]    
Service cost $ 13us-gaap_DefinedBenefitPlanServiceCost $ 24us-gaap_DefinedBenefitPlanServiceCost
Interest cost on projected benefit obligation 1,789us-gaap_DefinedBenefitPlanInterestCost 1,652us-gaap_DefinedBenefitPlanInterestCost
Net amortization of actuarial loss 531us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses 824us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses
Expected return on plan assets (2,390)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets (2,522)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets
$ (57)us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost $ (22)us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost