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Marketable Securities and Fair Value Measurements (Details Textual) | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2012 $ / shares shares | Sep. 30, 2011 $ / shares shares | Mar. 31, 2016 USD ($) warrant shares | Mar. 31, 2015 USD ($) | Dec. 31, 2015 USD ($) shares | Jul. 01, 2015 USD ($)
Marketable Securities and Fair Value Measurements (Textual) [Abstract] |  |  |  |  |  |
Carryover basis |  |  |  |  |  | $ 0
Long-term asset associated with warrants |  |  | $ 3,000 |  |  |
Increase in fair value included in change in fair value of common stock warrants |  |  | $ 406,000 | $ (290,000) |  |
Number of common stock issued related to warrants exercised (shares) | shares |  |  | 0 |  |  |
Common stock warrants |  |  | $ 1,707,387 |  | $ 1,301,138 |
Onco Sec Common Stock Warrants [Member] |  |  |  |  |  |
Marketable Securities and Fair Value Measurements (Textual) [Abstract] |  |  |  |  |  |
Increase in fair value included in change in fair value of common stock warrants |  |  | $ (3,000) | $ (291,000) |  |
Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |  |  |
Marketable Securities and Fair Value Measurements (Textual) [Abstract] |  |  |  |  |  |
Number of shares held in an affiliated entity (shares) | shares |  |  | 1,644,155 |  | 1,644,155 |
Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Common Stock [Member] |  |  |  |  |  |
Marketable Securities and Fair Value Measurements (Textual) [Abstract] |  |  |  |  |  |
Investment owned (shares) | shares |  |  | 395,758 |  |  |
Using Significant Unobservable Inputs (Level 3) [Member] |  |  |  |  |  |
Marketable Securities and Fair Value Measurements (Textual) [Abstract] |  |  |  |  |  |
Number of warrants received to purchase shares of common stock | warrant |  |  | 2 |  |  |
Increase in fair value included in change in fair value of common stock warrants |  |  | $ 406,249 |  |  |
Using Significant Unobservable Inputs (Level 3) [Member] | First warrant [Member] |  |  |  |  |  |
Marketable Securities and Fair Value Measurements (Textual) [Abstract] |  |  |  |  |  |
Common stock purchase warrant (in shares) | shares |  | 50,000 |  |  |  |
Term of the warrants in years |  | 5 years |  |  |  |
Exercise price of a five-year warrant ($ per share) | $ / shares |  | $ 24.00 |  |  |  |
Using Significant Unobservable Inputs (Level 3) [Member] | Second warrant [Member] |  |  |  |  |  |
Marketable Securities and Fair Value Measurements (Textual) [Abstract] |  |  |  |  |  |
Common stock purchase warrant (in shares) | shares | 150,000 |  |  |  |  |
Term of the warrants in years | 5 years |  |  |  |  |
Exercise price of a five-year warrant ($ per share) | $ / shares | $ 20.00 |  |  |  |  |

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