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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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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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