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Commitments and Contingencies (Commitments, Narrative) (Details) (Product, Kristalose) | 12 Months Ended
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Dec. 31, 2012
Product, Kristalose |
Business Acquisition, Contingent Consideration [Line Items] |
Business acquisition, contingent consideration, percentage net product revenue obligated | 1.00%
Intangible assets, useful life | 15 years

X
- Definition Business acquisition, contingent consideration, percentage net product revenue obligated + References No definition available. + Details
Name: | cpix_BusinessAcquisitionContingentConsiderationPercentageNetProductRevenueObligated
Namespace Prefix: | cpix_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_BusinessAcquisitionContingentConsiderationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration