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INCOME TAXES (Details 1)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Taxes Details 1    
Tax benefits (expense) at statutory rate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate (35.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Unrecognized tax benefits (expense) of current period tax losses (35.00%)cpka_EffectiveIncomeTaxRateContinuingOperationsUnrecognizedTaxBenefitsExpenseOfCurrentPeriodTaxLosses 35.00%cpka_EffectiveIncomeTaxRateContinuingOperationsUnrecognizedTaxBenefitsExpenseOfCurrentPeriodTaxLosses
Effective tax rate