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RESTATEMENT OF PREVIOUSLY ISSUED CONSOLIDATED FINANCIAL STATEMENTS (Details Textual) (USD $) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Aug. 20, 2014 | Dec. 31, 2014 | Dec. 31, 2013 | Feb. 20, 2014
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  | $ 10.00 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  | 6,604,096 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights |  | 275,000 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
August 2014 Debenture [Member] |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | 1,109,690 us-gaap_DebtConversionConvertedInstrumentSharesIssued1 / us-gaap_DebtInstrumentAxis = clrb_August2014DebentureMember |  |  |
Interest Payable | $ 172,435 us-gaap_InterestPayableCurrentAndNoncurrent / us-gaap_DebtInstrumentAxis = clrb_August2014DebentureMember |  |  |
Share Price | $ 3.76 us-gaap_SharePrice / us-gaap_DebtInstrumentAxis = clrb_August2014DebentureMember |  |  |
Debt Instrument, Face Amount | 4,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = clrb_August2014DebentureMember |  |  |
August 2014 Underwritten Offering [Member] |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 3.75 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_DebtInstrumentAxis = clrb_August2014UnderwrittenOfferingMember |  |  |
Share Price | $ 3.75 us-gaap_SharePrice / us-gaap_DebtInstrumentAxis = clrb_August2014UnderwrittenOfferingMember |  |  |
Warrants Settleable In Cash, Cash Settlement Feature | $ 4,943,023 clrb_WarrantsSettleableInCashCashSettlementFeature / us-gaap_DebtInstrumentAxis = clrb_August2014UnderwrittenOfferingMember |  |  |
Common Stock [Member] |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | 3,833,333 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 4.68 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 3,833,333 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Share Price | $ 3.75 us-gaap_SharePrice / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Stock Issued During Period, Shares, New Issues | 3,583,333 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 3,583,333 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 550,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
Common Stock [Member] | August 2014 Debenture [Member] |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 4.68 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_DebtInstrumentAxis = clrb_August2014DebentureMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 1,109,690 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_DebtInstrumentAxis = clrb_August2014DebentureMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |
Debt Conversion, Converted Instrument, Shares Issued | 1,109,690 us-gaap_DebtConversionConvertedInstrumentSharesIssued1 / us-gaap_DebtInstrumentAxis = clrb_August2014DebentureMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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