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Note 6 - Employee Retirement Benefit Plans: Employee Retirement Benefit Plans, Details 2 (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Pension $ 1,147us-gaap_PensionExpense $ 965us-gaap_PensionExpense
Actuarial gain (loss) (15,710)us-gaap_DefinedBenefitPlanActuarialGainLoss 9,653us-gaap_DefinedBenefitPlanActuarialGainLoss
Pension Plans, Defined Benefit, Actuarial Gain Loss Projected, Next 12 months 782fil_PensionPlansDefinedBenefitActuarialGainLossProjectedNext12Months  
Assumptions Used Calculating Benefit Obligation, Discount Rate 4.80%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate 3.10%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate 4.80%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate 3.10%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets 8.00%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets  
Insurance Premium Due To The PBGC    
Other pension related expenses 394us-gaap_DefinedBenefitPlanOtherCosts
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= fil_InsurancePremiumDueToThePbgcMember		 234us-gaap_DefinedBenefitPlanOtherCosts
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= fil_InsurancePremiumDueToThePbgcMember
FederalExciseTaxMember    
Other pension related expenses $ 151us-gaap_DefinedBenefitPlanOtherCosts
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= fil_FederalExciseTaxMember		 $ 88us-gaap_DefinedBenefitPlanOtherCosts
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= fil_FederalExciseTaxMember