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Fair Value Measurements (Details Textual)	1 Months Ended		12 Months Ended
	Mar. 31, 2012 $ / shares shares	Sep. 30, 2011 $ / shares shares	Dec. 31, 2015 USD ($) warrant shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 USD ($)	Jul. 01, 2015 USD ($)
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Carryover basis						$ 0
Long-term asset associated with warrants			$ 6,000
Change in the fair value			(722,000)	$ (516,000)	$ 46,100,000
Common stock warrants			1,301,138	2,022,729
First warrant
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Change in the fair value			$ (544,000)	$ (168,000)	$ 450,000
Quoted Prices in Active Markets (Level 1)
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Number of shares held in an affiliated entity | shares			1,644,155	1,644,155
Quoted Prices in Active Markets (Level 1) | Common stock
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Number of shares owned | shares			395,758
Significant Unobservable Inputs (Level 3)
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Number of warrants received to purchase shares of common stock | warrant			2
Common stock purchase warrant (shares) | shares			0	2,419,425
Change in the fair value			$ (721,591)	$ (515,643)
Significant Unobservable Inputs (Level 3) | First warrant
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Common stock purchase warrant (shares) | shares		50,000
Term of the warrants in years		5 years
Exercise price of a five-year warrant ($ per share) | $ / shares		$ 24.00
Significant Unobservable Inputs (Level 3) | Second warrant
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Common stock purchase warrant (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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Exercise price of the warrants.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Balance held at close of period in number of shares.

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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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