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6. INCOME TAXES (Tables) | 12 Months Ended
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Sep. 30, 2012
Income Taxes Tables |
1. Schedule of Deferred taxes |
|  |  | 2012 |  |  |  | 2011 |
Net operating loss carryforwards |  | $ | 56,664,358 |  |  | $ | 51,381,945 |
R&D credit |  |  | 2,258,838 |  |  |  | 2,340,614 |
Stock-based compensation |  |  | 2,455,231 |  |  |  | 1,597,790 |
Vacation and other |  |  | 193,163 |  |  |  | 190,522 |
Deferred rent |  |  | 1,278,863 |  |  |  | 991,091 |
Litigation liability |  |  | — |  |  |  | 1,842,297 |
Total deferred tax assets |  |  | 62,850,453 |  |  |  | 58,344,259 |
Derivative gain |  |  | (4,681,855 | ) |  |  | (3,639,050 | )
Depreciation |  |  | (51,980 | ) |  |  | (76,841 | )
Total deferred tax liabilities |  |  | (4,733,835 | ) |  |  | (3,715,891 | )
Valuation allowance |  |  | (58,116,618 | ) |  |  | (54,628,368 | )
Net deferred tax asset |  | $ | — |  |  | $ | — |
2. Schedule of reconciliation of rates |
|  |  | 2012 |  |  |  | 2011 |  |  |  | 2010 |
Federal Rate |  |  | 34.00 | % |  |  | 34.00 | % |  |  | 34.00 | %
State tax rate, net of federal benefit |  |  | 5.21 |  |  |  | 3.22 |  |  |  | 5.91 |
State tax rate change |  |  | 18.07 |  |  |  | 12.06 |  |  |  | 0.00 |
Other adjustments |  |  | (0.53 | ) |  |  | (0.04 | ) |  |  | 0.00 |
Expired tax attributes |  |  | (33.54 | ) |  |  | 0.00 |  |  |  | 0.00 |
Nondeductible expenses |  |  | (0.68 | ) |  |  | (0.48 | ) |  |  | 0.02 |
Expiration of NOL |  |  | (33.54 | ) |  |  | 0.00 |  |  |  | 0.00 |
Valuation allowance |  |  | (22.53 | ) |  |  | (24.64 | ) |  |  | (39.93 | )
Effective tax rate |  |  | 0.00 | % |  |  | 0.00 | % |  |  | 0.00 | %

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