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Commitments and Contingencies (Commitments, Narrative) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 0 Months Ended
--- | --- | ---
Dec. 31, 2013 Product, Kristalose | Dec. 31, 2013 Collaborative Arrangement, Amended International Agreement | Oct. 29, 2013 Pernix Therapeutics Collaborative Arrangement, Amended International Agreement
Business Acquisition, Contingent Consideration [Line Items] |  |  |
Intangible assets, useful life | 15 years |  |
Other revenue, potential upfront payment related to product sales |  | $ 4.0 | $ 4.0

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- Definition Revenue Recognition, Potential Upfront Payment Related to Product Sales + References No definition available. + Details
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Namespace Prefix: | cpix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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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