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Commitments and Contingencies (Legal Matters, Narrative) (Details) - Product, 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

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

X
- 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

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

X
- Details
Name: | us-gaap_ProductOrServiceAxis=cpix_AcetadoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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