Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information (USD $)
12 Months Ended
Dec. 31, 2013
Mar. 14, 2014
Jun. 30, 2013
Document Information [Line Items]      
Entity Registrant Name Cellectar Biosciences, Inc.    
Entity Central Index Key 0001279704    
Current Fiscal Year End Date --12-31    
Entity Filer Category Smaller Reporting Company    
Trading Symbol CLRB    
Entity Common Stock, Shares Outstanding   57,397,997  
Amendment Flag false    
Document Type 10-K    
Document Period End Date Dec. 31, 2013    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2013    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 20,803,940