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v3.22.1

Non-Current Assets (Details) $ in Millions | Mar. 31, 2022 USD ($)
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Non-Current Assets [Abstract] |
Clinical trial deposits held by a contract research organization | $ 2.9

X
- Definition Represents the value of deposits held by a third-party but considered an asset to the Company. + References No definition available. + Details
Name: | cycc_DepositsHeldByRelatedParty
Namespace Prefix: | cycc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition N/A + References No definition available. + Details
Name: | cycc_NonCurrentAssetsAbstract
Namespace Prefix: | cycc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration