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Commitments and Contingencies (Details 3) (Celgene Corporation)	1 Months Ended
	Feb. 29, 2012	Apr. 30, 2010 patent
Legal proceedings
Number of patents in litigation		4
Jury trial period	7 days
Subsequent event
Legal proceedings
Jury trial period	7 days

X

- Definition

Represents the jury trial period which is set by the court in scheduling order.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the number of patents in litigation.

+ References

No definition available.

+ Details

Name:	cycc_LossContingencyNumberOfPatentsInLitigation
Namespace Prefix:	cycc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

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