Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Oct. 31, 2011	Jul. 31, 2011
Shareholders' deficit
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	68,922,423	68,922,423
Common stock, shares outstanding	68,922,423	68,922,423
Series B Preferred Stock
Shareholders' deficit
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	100	100
Preferred stock, shares issued	100	100
Preferred stock, shares outstanding	100	100
Preferred stock, liquidation preference	$ 10	$ 10
Series C Preferred Stock
Shareholders' deficit
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	62,048	62,048
Preferred stock, shares issued	62,048	62,048
Preferred stock, shares outstanding	62,048	62,048
Preferred stock, liquidation preference	$ 62	$ 62
Series D Preferred Stock
Shareholders' deficit
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	5,500	5,500
Preferred stock, shares issued	2,795	2,795
Preferred stock, shares outstanding	2,795	2,795
Preferred stock, liquidation preference	$ 4,193	$ 4,193