Annual report pursuant to Section 13 and 15(d)

FAIR VALUE (Details 1)

v2.4.1.9
FAIR VALUE (Details 1) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning fair value of warrants $ 5,720,000clrb_FairValueOfWarrantsClassifiedAsDerivativeLiabilityOutstanding  
Fair value of warrants issued in connection with February 2013 public offering 4,102,709clrb_FairValueOfWarrantsClassifiedAsDerivativeLiability 5,720,000clrb_FairValueOfWarrantsClassifiedAsDerivativeLiability
Gain on derivatives resulting from change in fair value 2,285,157us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet 2,373,941us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Ending fair value of warrants   5,720,000clrb_FairValueOfWarrantsClassifiedAsDerivativeLiabilityOutstanding
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning fair value of warrants 3,355,000clrb_FairValueOfWarrantsClassifiedAsDerivativeLiabilityOutstanding
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member 		0clrb_FairValueOfWarrantsClassifiedAsDerivativeLiabilityOutstanding
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Fair value of warrants issued in connection with February 2013 public offering 0clrb_FairValueOfWarrantsClassifiedAsDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member 		5,720,000clrb_FairValueOfWarrantsClassifiedAsDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Gain on derivatives resulting from change in fair value (2,227,500)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member 		(2,365,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Ending fair value of warrants $ 1,127,500clrb_FairValueOfWarrantsClassifiedAsDerivativeLiabilityOutstanding
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member 		$ 3,355,000clrb_FairValueOfWarrantsClassifiedAsDerivativeLiabilityOutstanding
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member