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STOCKHOLDERS' EQUITY (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
Warrants outstanding
Common Shares Issuable	1,138,630us-gaap_ClassOfWarrantOrRightOutstanding
Weighted Average Exercise Price (in dollars per share)	$ 11.57us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
October 2010 stock issuance
Warrants outstanding
Expiration Date	2015
Common Shares Issuable	594,513us-gaap_ClassOfWarrantOrRightOutstanding / cycc_EquityOfferingComponentsAxis = cycc_October2010StockIssuanceMember
Weighted Average Exercise Price (in dollars per share)	$ 13.44us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / cycc_EquityOfferingComponentsAxis = cycc_October2010StockIssuanceMember
July 2011 stock issuance
Warrants outstanding
Expiration Date	2016
Common Shares Issuable	544,117us-gaap_ClassOfWarrantOrRightOutstanding / cycc_EquityOfferingComponentsAxis = cycc_July2011StockIssuanceMember
Weighted Average Exercise Price (in dollars per share)	$ 9.52us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / cycc_EquityOfferingComponentsAxis = cycc_July2011StockIssuanceMember

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Exercise price per share or per unit of warrants or rights outstanding.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.4-08.(i)(4))

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-Topic 235

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



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-Name Regulation S-X (SX)

-Number 210

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