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Income Taxes - Company's Net Deferred Tax Assets and Liabilities (Detail) (USD $) | Sep. 30, 2013 | Sep. 30, 2012
--- | --- | ---
Deferred tax assets (liabilities): |  |
Net operating loss carryforwards | $ 10,473,905 | $ 8,428,034
Capitalized research and development costs | 134,550 | 336,475
Stock based compensation | 408,588 | 380,989
Prepaid License Fees |  | 4,641
AMT credit carryforwards | 66,320 | 66,320
Other | 186,212 | 78,620
Research credit carryforwards | 43,802 | 49,310
Total deferred assets | 11,313,377 | 9,344,389
Valuation allowance for net deferred tax assets | (11,313,377) | (9,344,389)
Total |  |

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