Fair value of Accounting allocation of initial proceeds - Series A, B, C, D & E 9% Convertible Preferred Stock (Details) - USD ($)	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014
Net proceeds	$ 475,000	$ 2,655,000
Deemed dividend	(339,583)	$ (2,058,329)
Series F Convertible Preferred Stock
Net proceeds	69,166,667
Derivative warrant liability fair value	(2,016,064)
Other issuance costs (Finders' Fee)	(166,000)
Derivative additional investment rights fair value	(863,735)
Make whole payments liability	(560,250)
Deemed dividend	(1,586,050)
Series G Convertible Preferred Stock
Net proceeds	475,000
Derivative warrant liability fair value	(354,535)
Other issuance costs (Finders' Fee)	(40,000)
Derivative additional investment rights fair value	(285,048)
Make whole payments liability	(135,000)
Deemed dividend	$ (339,583)