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Description of Business and Summary of Significant Accounting Policies (Details Textual) (USD $) | 3 Months Ended | 0 Months Ended | 1 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 28, 2012 | Sep. 25, 2013 pures | Dec. 31, 2014
Description of Business and Summary of Significant Accounting Policies (Textual) |  |  |  |  |
Common stock, par value | $ 0.001 us-gaap_CommonStockParOrStatedValuePerShare |  |  |  | $ 0.001 us-gaap_CommonStockParOrStatedValuePerShare
Research and development costs | $ 4,048,714 us-gaap_ResearchAndDevelopmentExpense | $ 1,589,776 us-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 |  |  | $ 0.01 us-gaap_CommonStockParOrStatedValuePerShare / dei_LegalEntityAxis = atnm_ActiniumMember |  |
Shares received by each API shareholder of Actinium common stock for each API share exchanged |  |  |  | 0.333 atnm_SharesExchangeRatio / dei_LegalEntityAxis = atnm_ActiniumMember |
Common stock shares |  |  |  | 3,970,137 atnm_CommonStockShares / dei_LegalEntityAxis = atnm_ActiniumMember |
Common stock shares exchanged |  |  |  | 1,322,055 atnm_ExchangedInCommonStockShares / dei_LegalEntityAxis = atnm_ActiniumMember |

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- Definition Common stock shares exchanged. + References No definition available. + Details
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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51661791&loc=d3e1205-110223 + Details
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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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