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v2.4.1.9

Stockholders' Equity (Detail Textuals 2) (USD $) | 1 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended
--- | --- | --- | --- | --- | --- | ---
Apr. 30, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Nov. 14, 2013 | Dec. 31, 2012 | May 16, 2013 | May 21, 2013
Equity Offering [Line Items] |  |  |  |  |  |  |
Purchase price for shares issued under purchase agreement |  | $ 3,132,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash | $ 9,126,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash |  |  |  |
Common stock, par value (in dollars per share) |  | $ 0.001 us-gaap_CommonStockParOrStatedValuePerShare | $ 0.001 us-gaap_CommonStockParOrStatedValuePerShare |  |  |  |
Proceeds from sale of common stock, net of certain fees and expenses |  | 9,289,000 us-gaap_StockIssuedDuringPeriodValueNewIssues | 19,006,000 us-gaap_StockIssuedDuringPeriodValueNewIssues |  |  |  |
Change in valuation of financial instruments associated with stock purchase agreement |  | 342,000 cycc_ExpenseRelatedToStockPurchaseAgreement | 98,000 cycc_ExpenseRelatedToStockPurchaseAgreement |  |  |  |
Economic Rights settled for payments | 600,000 cycc_EconomicRightSettledForPayments |  |  |  |  |  |
Common shares issued |  | 1,341,129 us-gaap_ClassOfWarrantOrRightOutstanding |  |  |  |  |
Common stock |  |  |  |  |  |  |
Equity Offering [Line Items] |  |  |  |  |  |  |
Number of shares issued under purchase agreement |  | 950,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForCash / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 2,133,401 us-gaap_StockIssuedDuringPeriodSharesIssuedForCash / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Purchase price for shares issued under purchase agreement |  | 1,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 2,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Shares sold (in shares) |  | 2,857,143 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 6,833,334 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Proceeds from sale of common stock, net of certain fees and expenses |  | 3,000 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 6,000 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
November 2013 Stock Purchase Agreement | Common stock | Aspire Capital Fund, LLC |  |  |  |  |  |  |
Equity Offering [Line Items] |  |  |  |  |  |  |
Number of shares issued under purchase agreement |  | 950,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForCash / cycc_EquityOfferingComponentsAxis = cycc_November2013StockIssuanceMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  | 511,509 us-gaap_StockIssuedDuringPeriodSharesIssuedForCash / cycc_EquityOfferingComponentsAxis = cycc_November2013StockIssuanceMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Purchase price for shares issued under purchase agreement |  | 3,100,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash / cycc_EquityOfferingComponentsAxis = cycc_November2013StockIssuanceMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  | 2,000,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash / cycc_EquityOfferingComponentsAxis = cycc_November2013StockIssuanceMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Period of common stock purchase agreement |  |  |  | 2 years |  |  |
Stock issued for non-cash consideration |  |  |  | 166,105 us-gaap_StockIssuedDuringPeriodSharesIssuedForNoncashConsideration / cycc_EquityOfferingComponentsAxis = cycc_November2013StockIssuanceMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
November 2013 Stock Purchase Agreement | Common stock | Maximum | Aspire Capital Fund, LLC |  |  |  |  |  |  |
Equity Offering [Line Items] |  |  |  |  |  |  |
Shares committed to purchase |  |  |  | 3,042,038 cycc_CommonStockPurchaseAgreementShares / cycc_EquityOfferingComponentsAxis = cycc_November2013StockIssuanceMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Common stock purchase agreement, purchase commitment |  |  |  | 18,000,000 us-gaap_PurchaseObligation / cycc_EquityOfferingComponentsAxis = cycc_November2013StockIssuanceMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
December 2012 Stock Purchase Agreement | Common stock | Aspire Capital Fund, LLC |  |  |  |  |  |  |
Equity Offering [Line Items] |  |  |  |  |  |  |
Change in valuation of financial instruments associated with stock purchase agreement |  |  |  |  | 400,000 cycc_ExpenseRelatedToStockPurchaseAgreement / cycc_EquityOfferingComponentsAxis = cycc_December2012StockIssuanceMember / dei_LegalEntityAxis = cycc_AspireCapitalFundLLCMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |
May 2013 Underwriting Agreement |  |  |  |  |  |  |
Equity Offering [Line Items] |  |  |  |  |  |  |
Shares committed for sale under agreement |  |  |  |  |  | 6,666,667 cycc_CommonStockUnderwritingAgreementShares / cycc_EquityOfferingComponentsAxis = cycc_May2013SaleOfCommonStockMember |
Common stock, par value (in dollars per share) |  |  |  |  |  | $ 0.001 us-gaap_CommonStockParOrStatedValuePerShare / cycc_EquityOfferingComponentsAxis = cycc_May2013SaleOfCommonStockMember |
Offering price per unit (in dollars per unit) |  |  |  |  |  | $ 3.00 us-gaap_EquityIssuancePerShareAmount / cycc_EquityOfferingComponentsAxis = cycc_May2013SaleOfCommonStockMember | $ 3.00 us-gaap_EquityIssuancePerShareAmount / cycc_EquityOfferingComponentsAxis = cycc_May2013SaleOfCommonStockMember
Shares sold (in shares) |  |  |  |  |  |  | 6,833,334 us-gaap_StockIssuedDuringPeriodSharesNewIssues / cycc_EquityOfferingComponentsAxis = cycc_May2013SaleOfCommonStockMember
Number of share sold that were subject to the underwriters' over-allotment option |  |  |  |  |  |  | 166,667 cycc_NumberOfSharesIssuedDuringPeriodSubjectToUnderwritersOverAllotmentOption / cycc_EquityOfferingComponentsAxis = cycc_May2013SaleOfCommonStockMember
Proceeds from sale of common stock, net of certain fees and expenses |  |  |  |  |  |  | $ 19,000,000 us-gaap_StockIssuedDuringPeriodValueNewIssues / cycc_EquityOfferingComponentsAxis = cycc_May2013SaleOfCommonStockMember
July 2009 Stock Issuance |  |  |  |  |  |  |
Equity Offering [Line Items] |  |  |  |  |  |  |
Common shares issued |  | 98,893 us-gaap_ClassOfWarrantOrRightOutstanding / cycc_EquityOfferingComponentsAxis = cycc_July2009StockIssuanceMember |  |  |  |  |
February 2007 stock issuance |  |  |  |  |  |  |
Equity Offering [Line Items] |  |  |  |  |  |  |
Number of shares of common stock issued in connection with warrants |  | 151,773 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / cycc_EquityOfferingComponentsAxis = cycc_February2007StockIssuanceMember |  |  |  |  |

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