CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jul. 31, 2015	Jul. 31, 2014
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	825,496,238	778,512,092
Common stock, shares outstanding	825,496,238	778,512,092
Series A Convertible Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Convertible preferred stock, shares authorized	5,500	5,500
Convertible preferred stock, shares issued	0	0
Convertible preferred stock, shares outstanding	0	0
Convertible preferred stock, cumulative percentage of interest	9.00%	9.00%
Series B Convertible Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Convertible preferred stock, shares authorized	2,000	2,000
Convertible preferred stock, shares issued	0	0
Convertible preferred stock, shares outstanding	0	0
Convertible preferred stock, cumulative percentage of interest	9.00%	9.00%
Series C Convertible Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Convertible preferred stock, shares authorized	750	750
Convertible preferred stock, shares issued	0	0
Convertible preferred stock, shares outstanding	0	0
Convertible preferred stock, cumulative percentage of interest	9.00%	9.00%
Series D Convertible Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Convertible preferred stock, shares authorized	750	750
Convertible preferred stock, shares issued	0	0
Convertible preferred stock, shares outstanding	0	0
Convertible preferred stock, cumulative percentage of interest	9.00%	9.00%
Series E Convertible Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Convertible preferred stock, shares authorized	2,450	2,450
Convertible preferred stock, shares issued	0	25
Convertible preferred stock, shares outstanding	0	25
Convertible preferred stock, cumulative percentage of interest	9.00%	9.00%
Series F Convertible Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Convertible preferred stock, shares authorized	4,150	4,150
Convertible preferred stock, shares issued	670	1,225
Convertible preferred stock, shares outstanding	670	1,225
Convertible preferred stock, cumulative percentage of interest	9.00%	9.00%
Series G Convertible Preferred Stock
Convertible preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000
Convertible preferred stock, shares authorized	1,000	1,000
Convertible preferred stock, shares issued	500	0
Convertible preferred stock, shares outstanding	500	0
Convertible preferred stock, cumulative percentage of interest	9.00%	9.00%