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Commitments and Contingencies (Commitments, Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Oct. 29, 2013	Feb. 28, 2014
Product, Kristalose
Business Acquisition, Contingent Consideration [Line Items]
Intangible assets, useful life	15 years
Product, Vaprisol
Business Acquisition, Contingent Consideration [Line Items]
Additional upfront payments				$ 2.0cpix_BusinessCombinationAggregateUpfrontPayments / us-gaap_BusinessAcquisitionAxis = cpix_VaprisolMember
Collaborative Arrangement, Amended International Agreement
Business Acquisition, Contingent Consideration [Line Items]
Other revenue, potential upfront payment related to product sales		4.0cpix_RevenueRecognitionPotentialUpfrontPaymentRelatedtoProductSales / us-gaap_TypeOfArrangementAxis = cpix_AmendedInternationalAgreementMember
Pernix Therapeutics | Collaborative Arrangement, Amended International Agreement
Business Acquisition, Contingent Consideration [Line Items]
Other revenue, potential upfront payment related to product sales	3.0cpix_RevenueRecognitionPotentialUpfrontPaymentRelatedtoProductSales / dei_LegalEntityAxis = cpix_PernixTherapeuticsMember / us-gaap_TypeOfArrangementAxis = cpix_AmendedInternationalAgreementMember		$ 4.0cpix_RevenueRecognitionPotentialUpfrontPaymentRelatedtoProductSales / dei_LegalEntityAxis = cpix_PernixTherapeuticsMember / us-gaap_TypeOfArrangementAxis = cpix_AmendedInternationalAgreementMember

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- Definition

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- Definition

Revenue Recognition, Potential Upfront Payment Related to Product Sales

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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