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Acquisitions - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	6 Months Ended	12 Months Ended	131 Months Ended
	Oct. 21, 2012	Oct. 21, 2011	Mar. 31, 2014	Sep. 30, 2013	Mar. 31, 2014
Business Acquisition [Line Items]
Obligation to pay royalties			later of (i) the expiration of the last to expire patent right related to such product candidate that was transferred in the Transaction and (ii) ten years after the first commercial sale of such product candidate.
Net present value of contingent consideration		$ 84,935
Contingent consideration - fair value adjustments	986,049			1,400,000	1,421,652
Roche Madison
Business Acquisition [Line Items]
Issue of promissory note to Roche		50,000
Issue of Common Stock		1,288,158
Applicable out-license term			90 days		90 days
Percentage of royalty liability			3.00%		3.00%
Cash payments to Roche, minimum			2,500,000		2,500,000
Cash payments to Roche, maximum			$ 6,000,000		$ 6,000,000

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- Definition

Applicable out license term.

+ References

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- Definition

Business acquisition equity interests issued number of shares issued.

+ References

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- Definition

Business combination consideration promissory note issued.

+ References

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- Definition

Obligation to pay royalties.

+ References

No definition available.

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- Definition

Percentage of royalty liability.

+ References

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- Definition

Present value of contingent acquisition consideration.

+ References

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- Details

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e7008-128479

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

-Paragraph 1

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- Definition

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+ References

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-Publisher FASB

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-Section 50

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