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Related Party Transactions (Details Textual) - USD ($) |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended
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Feb. 22, 2016 | Feb. 16, 2016 | Jan. 22, 2016 | Jun. 09, 2015 | Feb. 11, 2015 | Jul. 10, 2014 | Jul. 10, 2014 | Dec. 09, 2013 | Jun. 30, 2014 | Mar. 24, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Related Party Transactions (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Underwritten offering common stock, Shares |  |  |  |  |  |  |  |  | 1,670,000 |  | 5,626,119 |  |
Stock issued during period value under subscription agreements |  |  |  |  |  |  |  |  |  |  | $ 37,637,959 | $ 15,435,305 | $ 2,883,257
Gross proceeds from public offering |  |  |  |  |  |  |  |  | $ 12,500,000 |  | 15,100,000 |  |
Net proceeds from public offering |  |  |  |  |  |  |  |  |  |  | 14,700,000 |  |
Sale of stock, Description |  |  |  |  |  |  |  |  |  | The Company will pay MLV in cash, upon the sale of common stock pursuant to the Sales Agreement, an amount equal to 3.0% of the gross proceeds from the sale of common stock. On April 28, 2014, the Company issued 500 shares and received net proceeds of $6,000 under the Sales Agreement with MLV. |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Underwritten offering common stock, Shares | 500 | 10,750 | 500 |  |  |  |  |  |  |  |  |  |
Stock issued during period value under subscription agreements |  | $ 19,350 |  |  |  |  |  |  |  |  |  |  |
Placement agent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Description of receivables of placement agent for services |  |  |  |  |  |  |  | The agreement entered in on December 9, 2013 included a cash fee equal to 10% of the gross proceeds raised, a non-accountable expense reimbursement equal to 2% of the gross proceeds raised and warrants to purchase shares of the Company's Common Stock. |  |  |  |  |
Description of warrants receivables by placement |  |  |  |  |  |  |  | Warrants to purchase shares of the Company's Common Stock in an amount equal to 10% of the shares of common stock issued or issuable. |  |  |  |  |
Monthly fee for financial advisory services |  |  |  |  |  |  |  | $ 25,000 |  |  |  |  |
Repayment of amount paid to placement agent |  |  |  |  |  |  |  |  |  |  | $ 25,000 | 25,000 |
Underwritten offering common stock, Shares |  |  |  |  |  |  |  |  |  |  |  |  | 69,289
Cash fee |  |  |  |  |  |  | $ 455,108 |  |  |  |  | $ 397,303 | $ 399,103
Warrants to purchase of common stock |  |  |  |  |  |  |  |  |  |  |  | 68,976 | 69,289
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  | $ 9 |  |
Warrants term |  |  |  |  |  |  |  |  |  |  | 5 years |  |
Subscription Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Amount paid to placement agent |  |  |  | $ 400,000 |  |  |  |  |  |  |  |  |
Underwritten offering common stock, Shares |  |  |  | 1,923,078 |  |  |  |  |  |  |  |  |
Stock issued during period value under subscription agreements |  |  |  | $ 5,000,000 |  |  |  |  |  |  |  |  |
Share price |  |  |  | $ 2.60 |  |  |  |  |  |  |  |  |
IPO [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Amount paid to placement agent |  |  |  |  | $ 1,400,000 |  |  |  |  |  |  |  |
Underwritten offering common stock, Shares |  |  |  |  | 4,444,444 | 1,827,123 |  |  |  |  |  |  |
Gross proceeds from public offering |  |  |  |  | $ 20,000,000 | $ 13,700,000 |  |  |  |  |  |  |
Net proceeds from public offering |  |  |  |  | $ 18,500,000 | $ 12,600,000 |  |  | $ 11,500,000 |  |  |  |
Exercise price of warrants |  |  |  |  | $ 6.50 |  |  |  |  |  |  |  |
MSKCC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Maintenance fees |  |  |  |  |  |  |  |  |  |  | $ 200,000 | $ 300,000 | $ 100,000
Royalty description |  |  |  |  |  |  |  |  |  |  | Under the agreement, the Company shall pay to MSKCC on a country-by-country basis a royalty of 2% of net sales of all licensed products until the later of: (1) 10 years from the first commercial sale, or (2) when the patents expire. |  |
Number of shares common stock |  |  |  |  |  |  |  |  |  |  | 5,700,000 |  |
Sale of stock, Description |  |  |  |  |  |  |  |  |  |  | Thereafter MSKCC shall be 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. |  |
MSKCC [Member] | Clinical Trial Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Maintenance fees |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 200,000 |

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