Class of Warrant or Right, Term

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- Definition

Marketable securities and fair value measurements.

+ References

No definition available.

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- Definition

Number of warrants received to purchase shares of common stock.

+ References

No definition available.

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- Definition

Stock Issued During Period, Shares, Warrants Exercised

+ References

No definition available.

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- Definition

Fair value measurement using unobservable inputs (level 3) of warrants received

+ References

No definition available.

+ Details

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- Definition

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

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Number of shares of affiliates held for management investment companies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 320

-Section S99

-Paragraph 6

-Subparagraph (SX 210.12-14.Column B)

-URI http://asc.fasb.org/extlink&oid=34726532&loc=d3e611322-123010

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 14

-Paragraph Column B

-Article 12

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Article 4

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Marketable Securities and Fair Value Measurements (Details Textual)	1 Months Ended		3 Months Ended		6 Months Ended
	Mar. 31, 2012 $ / shares shares	Sep. 30, 2011 $ / shares shares	Jun. 30, 2015 USD ($) warrant shares	Jun. 30, 2014 USD ($) shares	Jun. 30, 2015 USD ($) warrant shares	Jun. 30, 2014 USD ($) shares	Dec. 31, 2014 USD ($) shares
Marketable Securities and Fair Value Measurements (Textual) [Abstract]
Long-term asset associated with warrants			$ 187,000		$ 187,000
Decrease in fair value included in change in fair value of common stock warrants			$ 23,000	$ 1,400,000	$ (313,000)	$ 155,000
Number of common stock issued related to warrants exercised (shares) \| shares			0	170,455	0	2,071,475
Common stock warrants			$ 1,710,229		$ 1,710,229		$ 2,022,729
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			$ 73,000	$ (529,000)	$ 364,000	$ 164,000
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		1,644,155
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		2
Decrease in fair value included in change in fair value of common stock warrants					$ (312,500)
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