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Convertible Note and Derivative Liability (Schedule Of Fair Value Of Derivative Liability) (Details)
3 Months Ended 12 Months Ended
Oct. 31, 2014
Jul. 31, 2014
Jul. 31, 2013
Convertible Note and Derivative Liability [Abstract]      
Volatility 186.40%us-gaap_FairValueAssumptionsExpectedVolatilityRate 163.50%us-gaap_FairValueAssumptionsExpectedVolatilityRate 144.50%us-gaap_FairValueAssumptionsExpectedVolatilityRate
Risk-free interest rate 0.49%us-gaap_FairValueAssumptionsRiskFreeInterestRate 0.98%us-gaap_FairValueAssumptionsRiskFreeInterestRate 0.97%us-gaap_FairValueAssumptionsRiskFreeInterestRate
Dividend yield 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate
Expected life 2 years 2 months 12 days 2 years 4 months 24 days 3 years 4 months 24 days