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Property and Equipment (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Depreciation, including amortization related to leasehold improvements	$ 0.4cpix_DepreciationIncludingAmortizationRelatedToLeaseholdImprovements	$ 0.4cpix_DepreciationIncludingAmortizationRelatedToLeaseholdImprovements	$ 0.4cpix_DepreciationIncludingAmortizationRelatedToLeaseholdImprovements

X

- Definition

Depreciation, Including Amortization Related to Leasehold Improvements

+ References

No definition available.

+ Details

Name:	cpix_DepreciationIncludingAmortizationRelatedToLeaseholdImprovements
Namespace Prefix:	cpix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration