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Stockholders’ Deficiency (Tables)
6 Months Ended
Jan. 31, 2015
Series E Convertible Preferred Stock  
Accounting allocation of initial proceeds

   Accounting allocation of initial proceeds    
Net proceeds   $ 750,000  
Derivative warrant liability fair value     (942,279 )
Other issuance costs (finders’ fee)     (64,000 )
Make whole payments liability     (216,000 )
Deemed dividend   $ (472,279 )

Series F Convertible Preferred Stock  
Accounting allocation of initial proceeds

   Accounting allocation of initial proceeds    
Net proceeds   $ 2,020,000  
Derivative warrant liability fair value     (2,016,064 )
Derivative additional investment rights fair value     (863,735 )
Other issuance costs (finders’ fee)     (166,000 )
Make whole payments liability     (560,250 )
Deemed dividend   $ (1,586,050 )