Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE (Details)

v2.4.1.9
FAIR VALUE (Details) (USD $)
Sep. 30, 2014
Dec. 31, 2013
Liabilities:    
Warrants $ 4,093,095us-gaap_DerivativeLiabilitiesCurrent $ 3,359,363us-gaap_DerivativeLiabilitiesCurrent
February 2013 Public Offering Warrants [Member]    
Liabilities:    
Warrants 819,500us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_February2013PublicOfferingWarrantsMember
3,355,000us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_February2013PublicOfferingWarrantsMember
August 2014 Warrants [Member]    
Liabilities:    
Warrants 3,272,971us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_August2014PublicOfferingMember
 
Legacy Warrants [Member]    
Liabilities:    
Warrants 624us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_StatementEquityComponentsAxis
= clrb_WarrantOneMember
4,363us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_StatementEquityComponentsAxis
= clrb_WarrantOneMember
Fair Value, Inputs, Level 1 [Member]    
Liabilities:    
Warrants 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Fair Value, Inputs, Level 1 [Member] | February 2013 Public Offering Warrants [Member]    
Liabilities:    
Warrants 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_February2013PublicOfferingWarrantsMember
0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_February2013PublicOfferingWarrantsMember
Fair Value, Inputs, Level 1 [Member] | August 2014 Warrants [Member]    
Liabilities:    
Warrants 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_August2014PublicOfferingMember
 
Fair Value, Inputs, Level 1 [Member] | Legacy Warrants [Member]    
Liabilities:    
Warrants 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_StatementEquityComponentsAxis
= clrb_WarrantOneMember
0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_StatementEquityComponentsAxis
= clrb_WarrantOneMember
Fair Value, Inputs, Level 2 [Member]    
Liabilities:    
Warrants 3,273,595us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
4,363us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Fair Value, Inputs, Level 2 [Member] | February 2013 Public Offering Warrants [Member]    
Liabilities:    
Warrants 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_February2013PublicOfferingWarrantsMember
0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_February2013PublicOfferingWarrantsMember
Fair Value, Inputs, Level 2 [Member] | August 2014 Warrants [Member]    
Liabilities:    
Warrants 3,272,971us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_August2014PublicOfferingMember
 
Fair Value, Inputs, Level 2 [Member] | Legacy Warrants [Member]    
Liabilities:    
Warrants 624us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_StatementEquityComponentsAxis
= clrb_WarrantOneMember
4,363us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_StatementEquityComponentsAxis
= clrb_WarrantOneMember
Fair Value, Inputs, Level 3 [Member]    
Liabilities:    
Warrants 819,500us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
3,355,000us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Fair Value, Inputs, Level 3 [Member] | February 2013 Public Offering Warrants [Member]    
Liabilities:    
Warrants 819,500us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_February2013PublicOfferingWarrantsMember
3,355,000us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_February2013PublicOfferingWarrantsMember
Fair Value, Inputs, Level 3 [Member] | August 2014 Warrants [Member]    
Liabilities:    
Warrants 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_SubsidiarySaleOfStockAxis
= clrb_August2014PublicOfferingMember
 
Fair Value, Inputs, Level 3 [Member] | Legacy Warrants [Member]    
Liabilities:    
Warrants $ 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_StatementEquityComponentsAxis
= clrb_WarrantOneMember
$ 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_StatementEquityComponentsAxis
= clrb_WarrantOneMember