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Private Placements and Public Offerings (Details 2) (USD $)
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0 Months Ended | 8 Months Ended | 12 Months Ended | 66 Months Ended | 11 Months Ended | 0 Months Ended | 0 Months Ended | ||||
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Jun. 24, 2011
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Mar. 18, 2011
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Jul. 31, 2012
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Jul. 31, 2013
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Dec. 12, 2012
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Mar. 28, 2012
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Jun. 24, 2011
Common Stock
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Mar. 28, 2012
Warrants
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Jun. 24, 2011
Warrants issued with March 2011 Private Placement
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Mar. 28, 2012
Series A Warrant
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Jun. 24, 2011
Series B Warrant
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| Derivative Liabilities | |||||||||||
| Proceeds available for allocation | $ 0 | $ 0 | |||||||||
| Estimated fair value of derivative liabilities | 657,604 | 3,808,590 | 657,604 | ||||||||
| Total proceeds of private placement | 3,000,000 | 1,092,000 | |||||||||
| Fair value of derivative liabilities in excess of proceeds | (808,590) | 808,590 | |||||||||
| Adjustments to fair value of derivative liabilities | $ 4,192,781 | $ 3,150,986 | |||||||||
| Derivative liabilities valuation assumptions using Monte Carlo valuation model | |||||||||||
| Closing price per share of common stock (in dollars per share) | $ 0.75 | $ 0.22 | |||||||||
| Exercise price per share (in dollars per share) | $ 0.50 | ||||||||||
| Expected volatility (as a percent) | 125.00% | ||||||||||
| Risk-free interest rate (as a percent) | 1.05% | ||||||||||
| Dividend yield (as a percent) | 0.00% | ||||||||||
| Floor price (in dollars per share) | $ 0.26 | $ 0.50 | |||||||||
| Remaining expected term of underlying securities | 4 years 2 months 26 days | ||||||||||