Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
3 Months Ended
Mar. 31, 2019
May 09, 2019
Document and Entity Information [Abstract]    
Entity Registrant Name Actinium Pharmaceuticals, Inc.  
Entity Central Index Key 0001388320  
Trading Symbol ATNM  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Type 10-Q  
Document Period End Date Mar. 31, 2019  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2019  
Entity Filer Category Accelerated Filer  
Entity Ex Transition Period true  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   162,033,521