Line Of Credit Facility, Additional Borrowing Capacity

No definition available.

Name:	cpix_LineOfCreditFacilityAdditionalBorrowingCapacity
Namespace Prefix:	cpix_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Maximum Borrowing Capacity Upon Satisfaction of Certain Conditions

+ References

No definition available.

+ Details

Name:	cpix_LineOfCreditFacilityMaximumBorrowingCapacityUponSatisfactionOfCertainConditions
Namespace Prefix:	cpix_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The Coronavirus Aid, Relief, and Economic Security Act, Loan Proceeds Received

+ References

No definition available.

+ Details

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

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600

+ Details

Name:	us-gaap_LongTermLineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=cpix_PinnacleBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cpix_ThirdAmendmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cpix_SecondAmendmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt (Line of Credit) (Details) - USD ($)			12 Months Ended
Debt (Line of Credit) (Details) - USD ($)	Apr. 20, 2020	Jul. 31, 2017	Dec. 31, 2020	Oct. 07, 2020	Dec. 31, 2019	Oct. 17, 2018
Line of Credit Facility [Line Items]
Revolving line of credit			$ 15,000,000		$ 18,500,000
Pinnacle Bank
Line of Credit Facility [Line Items]
Aggregate amount	$ 2,187,140
Revolving Credit Facility \| Pinnacle Bank \| Third Amendment
Line of Credit Facility [Line Items]
Line of credit, current borrowing capacity				$ 15,000,000
Line of credit, maximum borrowing capacity				20,000,000
Maximum increase to line of credit				$ 5,000,000
Revolving Credit Facility \| Pinnacle Bank \| Second Amendment
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity						$ 20,000,000.0
Revolving line of credit			15,000,000.0
Revolving Credit Facility \| Pinnacle Bank \| Line of Credit
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity			12,000,000.0
Line of credit, maximum borrowing capacity upon satisfaction of certain conditions			$ 20,000,000.0
Revolving line of credit					$ 18,500,000
Interest rate			3.65%
Line of credit, unused capacity, commitment fee percentage		0.25%
Revolving Credit Facility \| Pinnacle Bank \| Line of Credit \| London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Interest rate with minimum LIBOR			0.90%
Revolving Credit Facility \| Pinnacle Bank \| Line of Credit \| Minimum
Line of Credit Facility [Line Items]
Interest rate			1.75%
Revolving Credit Facility \| Pinnacle Bank \| Line of Credit \| Maximum
Line of Credit Facility [Line Items]
Interest rate			2.75%