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Organization of the Company (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended
	Aug. 24, 2012	Sep. 11, 2012 Minimum	Aug. 24, 2012 Subsequent event	Sep. 11, 2012 Subsequent event Minimum	Aug. 10, 2012 Sinclair Minimum	Aug. 10, 2012 Sinclair Subsequent event Minimum
Recent developments
Reverse stock split	1-for-7		1-for-7
Reverse stock split conversion ratio	0.143		0.143
Closing bid price of common stock evidenced by the entity to regain compliance (in dollars per share)		$ 1.00		$ 1.00
Period from NASDAQ Staff's notification, during which the closing bid price of the common stock must equal to or exceed the specified closing bid price to regain compliance		10 days		10 days
Quarterly installments receivable under royalty arrangement					$ 1.0	$ 1.0
Period of royalty arrangement					3 years	3 years

X

- Definition

Represents the period of royalty arrangement based on future net revenues.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Represents the quarterly installments receivable under the royalty arrangement.

+ References

No definition available.

+ Details

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Namespace Prefix:	cycc_
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X

- Definition

Represents the period from NASDAQ Staff's notification, during which the closing bid price of the common stock must equals to or exceed the specified closing bid price, to regain compliance with the minimum closing bid price requirements set forth in Listing Rule 5450(a)(1).

+ References

No definition available.

+ Details

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X

- Definition

Represents the closing bid price of the entity's stock for a specified period from the date of the NASDAQ Staff's notification, that should be evidenced to regain compliance with the minimum closing bid price requirements set forth in Listing Rule 5450(a)(1).

+ References

No definition available.

+ Details

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Namespace Prefix:	cycc_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

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- Details

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Data Type:	xbrli:stringItemType
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X

- Definition

This item represents the conversion ratio used in the calculation of a stock split.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Stock Split

-URI http://asc.fasb.org/extlink&oid=6525746



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

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- Definition

Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 54

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section C

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