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Marketable Securities and Fair Value Measurements (Details Textual) - USD ($)	1 Months Ended		3 Months Ended		9 Months Ended
	Mar. 31, 2012	Sep. 30, 2011	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Jul. 01, 2015
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Carryover basis								$ 0
Decrease in fair value included in change in fair value of common stock warrants			$ 3,000	$ 616,000	$ (511,000)	$ 929,000
Common stock warrants			1,812,502		1,812,502		$ 1,301,138
Onco Sec Common Stock Warrants [Member]
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Decrease in fair value included in change in fair value of common stock warrants			$ 0	$ 98,000	$ 6,000	$ 461,000
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)			1,644,155		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)			395,758		395,758
Using Significant Unobservable Inputs (Level 3) [Member]
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Decrease in fair value included in change in fair value of common stock warrants					$ (511,364)
Using Significant Unobservable Inputs (Level 3) [Member] | First warrant [Member]
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Common stock purchase warrant (in shares)		50,000
Exercise price of a five-year warrant ($ per share)		$ 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)	150,000
Term of the warrants in years	5 years
Exercise price of a five-year warrant ($ per share)	$ 20.00

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Exercise price of the warrants.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column A

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This item represents the cost of equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments for other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.4-08.(i)(2))
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Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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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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