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Acquisitions - Additional Information (Detail) (USD $) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 17, 2011 | Sep. 30, 2012 | Oct. 21, 2011
Business Acquisition [Line Items] |  |  |
Reverse stock split ratio |  | Company effected a 1 for 10 reverse stock split |
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. |
Contingent consideration |  | $ 173,621 |
Roche [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Issue of promissory note to Roche |  | 50,000 | 50,000
Issue of common stock |  | 901,702 |
Reverse stock split ratio | 1-for-10 |  |
Issuance of additional shares of Common Stock |  | 386,456 |
Applicable out license term |  | 90 days |
Percentage of royalty liability |  | 3.00% |
Gain on purchase |  | 1,576,106 |
Contingent consideration |  | 84,935 |
Alvos acquisition [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Issue of common stock |  | 315,467 |
Issue of additional shares of Common Stock, Value |  | 23,500,000 |
Contingent consideration |  | $ 88,686 |

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