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Stockholders' Equity (Summary of Significant Assumptions Used in the Valuation of the Options and Warrants) (Details)
12 Months Ended
Jul. 31, 2013
Weighted Average:  
Forfeiture rate 0.00%
Options And Warrants [Member]
 
Weighted Average:  
Dividend rate 0.00%
Risk-free interest rate 1.34%
Expected lives (years) 7 years 10 months 24 days
Expected price volatility 78.90%
Forfeiture rate 0.00%