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Shareholders' Equity (Schedule of Option Exchange Program, Valuation Assumptions for Exchanged Options) (Details) (Option Exchange Program)
12 Months Ended
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Dividend yield 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected term (years) 1 year 3 months 18 days
Expected volatility rate 37.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_PlanNameAxis
= cpix_OptionExchangeProgramMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Risk-free interest rate 0.23%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_PlanNameAxis
= cpix_OptionExchangeProgramMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected term (years) 7 years 3 months 18 days
Expected volatility rate 78.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_PlanNameAxis
= cpix_OptionExchangeProgramMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Risk-free interest rate 1.50%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_PlanNameAxis
= cpix_OptionExchangeProgramMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember