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Consolidated Statements of Operations and Comprehensive Income (Parentheticals) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Continuing Operations Taxes $ 0us-gaap_IncomeTaxExpenseBenefit $ 0us-gaap_IncomeTaxExpenseBenefit
Income taxes 0us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation 144us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation
Income taxes $ 0us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent $ 0us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent