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Investment in Subsidiaries - Additional Information (Detail) (USD $) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Sep. 30, 2011 | Sep. 30, 2010
Schedule Of Investments [Line Items] |  |  |
Ownership percentage in subsidiary | 100.00% |  |
Issuance of preferred stock in subsidiary |  | $ 1,618,509 | $ 300,000
Calando Pharmaceuticals Inc |  |  |
Schedule Of Investments [Line Items] |  |  |
Outstanding Balance of Promissory Note | 1,210,000 |  |
Amount owed by subsidiary | 4,600,000 |  |
Stated percentage of notes and advances | 8.00% |  |
Percentage of outstanding shares | 79.00% |  |
Percentage of investment ownership | 76.00% |  |
Ablaris Therapeutics |  |  |
Schedule Of Investments [Line Items] |  |  |
Percentage of outstanding shares | 64.00% |  |
Percentage of investment ownership | 64.00% |  |
Issuance of preferred stock in subsidiary |  | 2,900,000 |
Investment in preferred stock |  | 1,300,000 |
Investment in preferred stock by outsider |  | $ 1,600,000 |

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