INTERIM CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $)	Apr. 30, 2014	Jul. 31, 2013	Apr. 30, 2014 Series D Convertible Preferred Stock	Jul. 31, 2013 Series D Convertible Preferred Stock	Apr. 30, 2014 Series F Convertible Preferred Stock	Jul. 31, 2013 Series F Convertible Preferred Stock
Convertible preferred stock, par value (in dollars per share)			$ 1,000	$ 1,000	$ 1,000	$ 1,000
Convertible preferred stock, shares authorized			750	750	4,150	0
Convertible preferred stock, shares issued			0	0	1,845	0
Convertible preferred stock, shares outstanding					1,845	0
Convertible preferred stock, cumulative percentage of interest			9.00%	9.00%	9.00%	9.00%
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	1,500,000,000	1,500,000,000
Common stock, shares issued and outstanding	750,103,804	580,329,160