Quarterly report pursuant to Section 13 or 15(d)

RESTATEMENT OF PREVIOUSLY ISSUED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Details Textual)

v2.4.1.9
RESTATEMENT OF PREVIOUSLY ISSUED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Details Textual) (USD $)
 1 Months Ended
Aug. 20, 2014
Feb. 20, 2014
Feb. 05, 2014
Sep. 30, 2014
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 10.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 $ 20.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1  
Warrants Settleable In Cash, Cash Settlement Feature 4,943,023clrb_WarrantsSettleableInCashCashSettlementFeature      
August 2014 Debenture [Member]        
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 4.68us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_DebtInstrumentAxis
= clrb_August2014DebentureMember 		     
Interest Payable $ 172,444us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_DebtInstrumentAxis
= clrb_August2014DebentureMember 		     
Debt Instrument, Face Amount $ 4,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= clrb_August2014DebentureMember 		     
Share Price $ 3.76us-gaap_SharePrice
/ us-gaap_DebtInstrumentAxis
= clrb_August2014DebentureMember 		     
Common Stock [Member]        
Stock Issued During Period, Shares, New Issues 3,583,333us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		     
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right 3,833,333us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		     
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 4.68us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		     
Share Price $ 3.75us-gaap_SharePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		     
Common Stock [Member] | August 2014 Debenture [Member]        
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right 1,109,690us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
/ us-gaap_DebtInstrumentAxis
= clrb_August2014DebentureMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		     
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 4.68us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_DebtInstrumentAxis
= clrb_August2014DebentureMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		     
Debt Conversion, Converted Instrument, Shares Issued 1,109,690us-gaap_DebtConversionConvertedInstrumentSharesIssued1
/ us-gaap_DebtInstrumentAxis
= clrb_August2014DebentureMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember 		     
August 2014 Public Offering [Member]        
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 4.68us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_August2014PublicOfferingMember 		[1]
[1] These warrants have a certain type of cash settlement feature or their exercise prices or the number of shares for which the warrant may be exercised are subject to adjustment for “down-rounds” and the warrants have been accounted for as derivative instruments as described in Note 3, with the exception of 96,988 warrants issued in August 2014.