Annual report pursuant to Section 13 and 15(d)

Description of Business and Summary of Significant Accounting Policies (Details Textual)

v2.4.1.9
Description of Business and Summary of Significant Accounting Policies (Details Textual) (USD $)
12 Months Ended 0 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 28, 2012
Sep. 25, 2013
pures
Description of Business and Summary of Significant Accounting Policies (Textual)        
Common stock, par value $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare    
Research and development costs $ 12,267,313us-gaap_ResearchAndDevelopmentExpense $ 3,109,331us-gaap_ResearchAndDevelopmentExpense    
Machinery and equipment [Member]        
Description of Business and Summary of Significant Accounting Policies (Textual)        
Estimated useful lives Three years      
Furniture and fixtures [Member]        
Description of Business and Summary of Significant Accounting Policies (Textual)        
Estimated useful lives Three years      
Actinium [Member]        
Description of Business and Summary of Significant Accounting Policies (Textual)        
Percentage of ownership interest acquired by company     100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= atnm_ActiniumMember
93.70%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= atnm_ActiniumMember
Common Stock issuable in consideration for equity interest acquisition     99.00%atnm_CommonStockIssuableInConsiderationForEquityInterestAcquisition
/ dei_LegalEntityAxis
= atnm_ActiniumMember
 
Common stock, par value     $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
/ dei_LegalEntityAxis
= atnm_ActiniumMember
 
Shares received by each API shareholder of Actinium common stock for each API share exchanged       0.333atnm_SharesExchangeRatio
/ dei_LegalEntityAxis
= atnm_ActiniumMember
Common stock shares       3,970,137atnm_CommonStockShares
/ dei_LegalEntityAxis
= atnm_ActiniumMember
Common stock shares exchanged       1,322,055atnm_ExchangedInCommonStockShares
/ dei_LegalEntityAxis
= atnm_ActiniumMember