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Related Party Transactions (Details Textual) - MSKCC [Member] - USD ($) shares in Millions | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 21, 2015 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Related Party Transactions (Textual) |  |  |  |
Number of shares common stock | 5.7 |  |  |
Sale of stock, Description |  | MSKCC was permitted to sell its shares subject to a weekly volume limitation of 150,000 shares (which limit may be increased to up to 250,000 shares per week to the extent any prior weekly allotments are not fully used) and applicable law so long as MSKCC maintains at least 25% of its current shareholding in Actinium through December 31, 2016. |  |
Maintenance fees |  | $ 100,000 | $ 100,000 |
Due of maintenance fees and research cost |  | $ 50,000 |  | $ 0

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