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STOCK BASED COMPENSATION (Details 5)	6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Minimum
Stock based compensation, additional disclosures
Forfeiture rate (as a percent)	0.00%
Maximum
Stock based compensation, additional disclosures
Forfeiture rate (as a percent)	30.00%
Stock options
Stock based compensation, additional disclosures
Number of Federal Reserve securities whose weighted average is used for calculation of weighted average risk-free interest rate	2
Restricted Stock Units
Stock based compensation, additional disclosures
Granted (in shares)		[1]	85,097
[1] Includes 85,097 restricted stock units issued that will vest upon the fulfillment of certain clinical and financial conditions.

X

- Definition

Represents the number of Federal Reserve securities whose weighted average is used for calculation of weighted average risk-free interest rate.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Represents the forfeiture rate used to estimate the pre-vesting option forfeitures.

+ References

No definition available.

+ Details

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Namespace Prefix:	cycc_
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Balance Type:	na
Period Type:	instant

X

- Details

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Period Type:	duration

X

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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