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COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Commitments and Contingencies
Future milestone payments payable	$ 10.0

X

- Definition

The potential future milestone payments required to be made under certain contractual agreements.

+ References

No definition available.

+ Details

Name:	cycc_LicenseAgreementPotentialFutureMilestonePayments
Namespace Prefix:	cycc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Details

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