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Revenues (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues (Textual) [Abstract]
Non-refundable up-front payments	$ 1.4cpix_RevenueRecognitionUpfrontPayment
Upfront payments and milestones payments related to regulatory approvals	1.7cpix_RevenueRecognitionPotentialUpfrontPaymentsRelatedtoRegulatoryApproval
Upfront payments and milestone payments related to product sales	4.0cpix_RevenueRecognitionPotentialUpfrontPaymentRelatedtoProductSales
Acetadote, Generic
Revenues (Textual) [Abstract]
Share of product revenue from generic sales	$ 0.5us-gaap_SalesRevenueGoodsNet / us-gaap_ProductOrServiceAxis = cpix_ProductAcetadoteGenericMember	$ 1.3us-gaap_SalesRevenueGoodsNet / us-gaap_ProductOrServiceAxis = cpix_ProductAcetadoteGenericMember

X

- Definition

Revenue Recognition, Potential Upfront Payment Related to Product Sales

+ References

No definition available.

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- Definition

Revenue Recognition, Potential Upfront Payments Related to Regulatory Approval

+ References

No definition available.

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- Definition

Revenue Recognition, Upfront Payment

+ References

No definition available.

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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