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Commitments and Contingencies (Legal Matters, Narrative) (Details) - Acetadote - Patent Infringement | 1 Months Ended
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Apr. 30, 2012 lawsuit company
Loss Contingencies [Line Items] |
Number of lawsuits filed as plaintiff | lawsuit | 5
Number of companies for which litigation settlement exists | company | 2

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- Definition Number of companies for which litigation settlement exists + References No definition available. + Details
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Namespace Prefix: | cpix_
Data Type: | xbrli:integerItemType
Balance Type: | na
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- Definition Number of lawsuits filed as plaintiff + References No definition available. + Details
Name: | cpix_NumberOfLawsuitsFiledAsPlaintiff
Namespace Prefix: | cpix_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=cpix_PatentInfringementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |