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STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) | Common Stock | Additional Paid-In Capital | Accumulated Deficit | Total
--- | --- | --- | --- | ---
Beginning Balance, Amount at Sep. 30, 2010 | $ 204,881 | $ 189,449,852 | $ (161,799,968) | $ 27,854,765
Beginning Balance, Shares at Sep. 30, 2010 | 20,488,044 |  |  |
Sale of Stock, Shares | 742,498 |  |  |
Sale of Stock, Amount | 7,425 | 3,928,859 |  | 3,936,284
401 (k) contributions paid in common stock, Shares | 29,431 |  |  |
401 (k) contributions paid in common stock, Amount | 294 | 150,571 |  | 150,865
Exercise of warrants and stock options, Shares | 178,660 |  |  |
Exercise of warrants and stock options, Amount | 1,787 | 677,801 |  | 679,588
Stock issued to nonemployees for service, Shares | 34,828 |  |  |
Stock issued to nonemployees for service, Amount | 348 | 213,775 |  | 214,123
Dissmissal of liability for overpayment |  | 81,395 |  | 81,395
Exercise of derivative liabilities |  | 202,830 |  | 202,830
Modification of stock options and warrants |  | 135,988 |  | 135,988
Employee option cost |  | 1,535,329 |  | 1,535,329
Net loss |  |  | (25,712,343) | (25,712,343)
Ending Balance, Amount at Sep. 30, 2011 | 214,735 | 196,376,400 | (187,512,311) | 9,078,824
Ending Balance, Shares at Sep. 30, 2011 | 21,473,461 |  |  |
Sale of Stock, Shares | 4,616,667 |  |  |
Sale of Stock, Amount | 46,167 | 14,243,351 |  | 14,289,518
Issuance of warrants in connection with sale of common stock |  | (6,706,667) |  | (6,706,667)
401 (k) contributions paid in common stock, Shares | 42,627 |  |  |
401 (k) contributions paid in common stock, Amount | 426 | 154,090 |  | 154,516
Exercise of warrants and stock options, Shares | 1,019,119 |  |  |
Exercise of warrants and stock options, Amount | 10,191 | 2,654,348 |  | 2,664,539
Stock issued to nonemployees for service, Shares | 160,618 |  |  |
Stock issued to nonemployees for service, Amount | 1,606 | 556,686 |  | 558,292
Exercise of derivative liabilities |  | 122,367 |  | 122,367
Extension of options issued to consultants |  | 54,789 |  | 54,789
Extension of options issued to employees |  | 36,990 |  | 36,990
Employee option cost |  | 2,229,326 |  | 2,229,326
Non-employee option cost |  | 22,248 |  | 22,248
Net loss |  |  | (15,477,310) | (15,477,310)
Ending Balance, Amount at Sep. 30, 2012 | 273,125 | 209,743,928 | (202,989,621) | 7,027,432
Ending Balance, Shares at Sep. 30, 2012 | 27,312,492 |  |  |
Sale of Stock, Shares | 3,500,000 |  |  |
Sale of Stock, Amount | 35,000 | 9,753,769 |  | 9,788,769
Issuance of warrants in connection with sale of common stock |  | (4,200,000) |  | (4,200,000)
401 (k) contributions paid in common stock, Shares | 74,230 |  |  |
401 (k) contributions paid in common stock, Amount | 742 | 158,114 |  | 158,856
Stock issued to nonemployees for service, Shares | 138,297 |  |  |
Stock issued to nonemployees for service, Amount | 1,383 | 359,542 |  | 360,925
Employee option cost |  | 2,636,905 |  | 2,636,905
Non-employee option cost |  | 98,150 |  | 98,150
Net loss |  |  | (9,170,947) | (9,170,947)
Ending Balance, Amount at Sep. 30, 2013 | $ 310,250 | $ 218,550,408 | $ (212,160,568) | $ 6,700,090
Ending Balance, Shares at Sep. 30, 2013 | 31,025,019 |  |  |

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