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New Products - Narrative (Details) (USD $)	3 Months Ended		12 Months Ended	0 Months Ended	1 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Oct. 29, 2013	Apr. 30, 2015	Feb. 28, 2014
Business Acquisition [Line Items]
Net revenues	$ 8,686,774us-gaap_SalesRevenueNet	$ 8,093,244us-gaap_SalesRevenueNet
Upfront payments and milestone payments related to product sales	4,000,000cpix_RevenueRecognitionPotentialUpfrontPaymentRelatedtoProductSales
Omeclamox-Pak
Business Acquisition [Line Items]
Additional upfront payments				4,000,000cpix_BusinessCombinationAggregateUpfrontPayments / us-gaap_BusinessAcquisitionAxis = cpix_OmeclamoxPakMember
Milestone payment			1,000,000cpix_ProductRIghtsAgreementMilestonePayment / us-gaap_BusinessAcquisitionAxis = cpix_OmeclamoxPakMember
Vaprisol
Business Acquisition [Line Items]
Upfront payment						2,000,000cpix_BusinessCombinationUpfrontPayment / us-gaap_BusinessAcquisitionAxis = cpix_VaprisolMember
Additional upfront payments						2,000,000cpix_BusinessCombinationAggregateUpfrontPayments / us-gaap_BusinessAcquisitionAxis = cpix_VaprisolMember
Recognized gain on contingent consideration	400,000cpix_RecognizedGainLossonContingentConsideration / us-gaap_BusinessAcquisitionAxis = cpix_VaprisolMember
Minimum | Omeclamox-Pak
Business Acquisition [Line Items]
Royalty payments based on percentage over gross profits				15.00%cpix_BusinessCombinationRoyaltiesRangeofPaymentOverGrossProfitsPercentage / us-gaap_BusinessAcquisitionAxis = cpix_OmeclamoxPakMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum | Omeclamox-Pak
Business Acquisition [Line Items]
Royalty payments based on percentage over gross profits				20.00%cpix_BusinessCombinationRoyaltiesRangeofPaymentOverGrossProfitsPercentage / us-gaap_BusinessAcquisitionAxis = cpix_OmeclamoxPakMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Amended International Agreement | Pernix Therapeutics
Business Acquisition [Line Items]
Upfront payments and milestone payments related to product sales				4,000,000cpix_RevenueRecognitionPotentialUpfrontPaymentRelatedtoProductSales / dei_LegalEntityAxis = cpix_PernixTherapeuticsMember / us-gaap_TypeOfArrangementAxis = cpix_AmendedInternationalAgreementMember
Omeclamox-Pak
Business Acquisition [Line Items]
Net revenues	758,191us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = cpix_OmeclamoxPakMember	1,139,421us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = cpix_OmeclamoxPakMember
Vaprisol
Business Acquisition [Line Items]
Net revenues	1,023,990us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = cpix_VaprisolMember	298,332us-gaap_SalesRevenueNet / us-gaap_ProductOrServiceAxis = cpix_VaprisolMember
Subsequent Event | Vaprisol
Business Acquisition [Line Items]
Payments for contingent considerations					$ 1,600,000cpix_PaymentsforContingentConsideration / us-gaap_BusinessAcquisitionAxis = cpix_VaprisolMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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