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Consolidated Statements of Operations (USD $)
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3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | 54 Months Ended | 63 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Apr. 30, 2013
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Apr. 30, 2012
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Jul. 31, 2008
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Apr. 30, 2013
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Apr. 30, 2012
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Jul. 31, 2012
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Jul. 31, 2011
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Jul. 31, 2010
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Jul. 31, 2009
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Jul. 31, 2012
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Apr. 30, 2013
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| Expenses: | |||||||||||
| Research and development | $ 707,660 | $ 701,201 | $ 2,362,872 | $ 1,725,194 | $ 2,368,481 | $ 648,314 | $ 3,053,151 | $ 5,416,022 | |||
| General and administrative | 1,001,518 | 887,648 | 2,941,625 | 2,238,222 | 3,158,693 | 1,047,161 | 4,237,557 | 7,179,182 | |||
| Loss from operations | (1,709,178) | (1,588,849) | (5,304,497) | (3,963,416) | (5,527,174) | (1,695,475) | (7,290,708) | (12,595,204) | |||
| Other income (expense): | |||||||||||
| Fair value of derivative liabilities in excess of proceeds | (808,590) | (808,590) | (808,590) | ||||||||
| Adjustments to fair value of derivative liabilities | 1,613,329 | 4,192,781 | 4,192,781 | (1,041,795) | 3,150,986 | 3,150,985 | |||||
| Loss on extinguishment of debt | (761,492) | (761,492) | (761,492) | (761,492) | (761,492) | ||||||
| Financing transaction costs | (210,000) | (210,000) | (210,000) | ||||||||
| Non-cash interest expense | (19,481) | (74,562) | (71,075) | (236,864) | (266,567) | (266,567) | (337,642) | ||||
| Interest expense | (1,357) | (1,357) | (1,357) | ||||||||
| Impairment charges | 0 | 0 | (9,000) | (9,000) | |||||||
| Net income (loss) before income taxes | (1,728,659) | (811,574) | (5,375,572) | (768,991) | (2,362,452) | (3,757,217) | (6,196,728) | (11,572,300) | |||
| Provision for income taxes | 2,000 | 2,400 | 2,400 | 1,600 | 4,000 | 6,000 | |||||
| Net income (loss) | $ (1,728,659) | $ (811,574) | $ (7,187) | $ (5,377,572) | $ (771,391) | $ (2,364,852) | $ (3,758,817) | $ (36,158) | $ (33,714) | $ (6,200,728) | $ (11,578,300) |
| Basic net income (loss) per common share (in dollars per share) | $ (0.01) | $ (0.01) | $ (0.05) | $ (0.01) | $ (0.04) | $ (0.06) | |||||
| Diluted net income (loss) per common share (in dollars per share) | $ (0.01) | $ (0.01) | $ (0.05) | $ (0.01) | $ (0.04) | $ (0.06) | |||||
| Weighted average shares used in computing basic net income (loss) per common share (in shares) | 117,859,000 | 68,222,667 | 102,717,806 | 60,589,577 | 67,443,432 | 63,300,493 | |||||
| Weighted average shares used in computing diluted income (loss) per common share (in shares) | 117,859,000 | 68,222,667 | 102,717,806 | 60,589,577 | 67,443,432 | 63,300,493 | |||||