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Fair Value (Detail Textuals) (USD $)	12 Months Ended		0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Nov. 14, 2013
Fair value measurements
Purchase price for shares issued under purchase agreement	$ 3,132,000us-gaap_StockIssuedDuringPeriodValueIssuedForCash	$ 9,126,000us-gaap_StockIssuedDuringPeriodValueIssuedForCash
Purchase Agreement | Aspire Capital Fund, LLC
Fair value measurements
Number of shares issued under purchase agreement			511,509us-gaap_StockIssuedDuringPeriodSharesIssuedForCash / cycc_AgreementAxis = cycc_PurchaseAgreementMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember
Purchase price for shares issued under purchase agreement			2,000,000us-gaap_StockIssuedDuringPeriodValueIssuedForCash / cycc_AgreementAxis = cycc_PurchaseAgreementMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember
Shares committed to purchase			3,042,038cycc_CommonStockPurchaseAgreementShares / cycc_AgreementAxis = cycc_PurchaseAgreementMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember
Period of common stock purchase agreement			2 years
Fair value of financial instrument	100,000us-gaap_ReceivablesFairValueDisclosure / cycc_AgreementAxis = cycc_PurchaseAgreementMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember	400,000us-gaap_ReceivablesFairValueDisclosure / cycc_AgreementAxis = cycc_PurchaseAgreementMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember	500,000us-gaap_ReceivablesFairValueDisclosure / cycc_AgreementAxis = cycc_PurchaseAgreementMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember
Decrease in the fair value of the purchase agreement	$ 300,000us-gaap_DerivativeGainLossOnDerivativeNet / cycc_AgreementAxis = cycc_PurchaseAgreementMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember

X

- Definition

Represents the number of shares of common stock committed to purchase under the purchase agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	cycc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the term of the common stock purchase agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	cycc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (a),(c),(d),(e)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

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Data Type:	xbrli:stringItemType
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Period Type:	duration

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- Definition

Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3, 4

-Article 5

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
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X

- Definition

Number of shares issued as consideration for cash for development stage entities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 915

-SubTopic 215

-Section 45

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6472370&loc=d3e38297-110927

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X

- Definition

Value of shares issued as consideration for cash for development stage entities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 915

-SubTopic 215

-Section 45

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6472370&loc=d3e38297-110927

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