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8. Income Taxes: Schedule of Components of Income Tax Expense (Benefit) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Details    
Current Federal Tax Expense (Benefit) $ 5,674us-gaap_CurrentFederalTaxExpenseBenefit $ 4,273us-gaap_CurrentFederalTaxExpenseBenefit
Deferred Federal Income Tax Expense (Benefit) (9)us-gaap_DeferredFederalIncomeTaxExpenseBenefit (39)us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Current State and Local Tax Expense (Benefit) 550us-gaap_CurrentStateAndLocalTaxExpenseBenefit 329us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Deferred State and Local Income Tax Expense (Benefit) 4us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit (2)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Current Foreign Tax Expense (Benefit) 625us-gaap_CurrentForeignTaxExpenseBenefit  
Deferred Foreign Income Tax Expense (Benefit) 150us-gaap_DeferredForeignIncomeTaxExpenseBenefit 330us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Income Tax Expense (Benefit), Continuing Operations $ 6,994us-gaap_IncomeTaxExpenseBenefitContinuingOperations $ 4,891us-gaap_IncomeTaxExpenseBenefitContinuingOperations