Fair Value of Financial Instruments - Fair Value Measurements within Fair Value Hierarchy of Derivative Liabilities Using Level 3 Inputs (Detail)	6 Months Ended
Jun. 30, 2015 USD ($)
Debt Instrument Fair Value Carrying Value [Abstract]
Beginning balance	$ 6,370,709
Conversion of notes payable, net of interest expense	(33,943)
Conversion of warrants related to licensing fees	(1,867,417)
Change in fair value of derivative liabilities	(1,286,845)
Ending balance	$ 3,182,504

Debt Instrument Fair Value Carrying Value [Abstract]

No definition available.

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- Definition

Fair value measurement with unobservable inputs reconciliations recurring basis liability value conversion of notes payable.

+ References

No definition available.

+ Details

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- Definition

Fair value measurement with unobservable inputs reconciliations recurring basis liability value conversion of warrants related to licensing fees.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) of 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)

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

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- Definition

Fair value of 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

+ Details

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