CONSOLIDATED BALANCE SHEETS (USD $)	Apr. 30, 2012	Jul. 31, 2011
ASSETS
Cash and cash equivalents	$ 1,194,578	$ 2,798,797
Accounts receivable	0	8,690
Inventory (Note 5)	0	717,442
Other current assets (Note 12)	296,290	225,052
Total Current Assets	1,490,868	3,749,981
Property and Equipment, Net	851,423	1,271,867
Assets Held for Investment, Net	886,927	3,634,929
Patents, Net	3,038,855	3,349,588
TOTAL ASSETS	6,268,073	12,006,365
LIABILITIES AND STOCKHOLDERS' DEFICIENCY
Accounts payable and accrued expenses (Note 6)	6,976,878	7,738,179
Deferred revenue	287,080	369,748
Current maturities of long-term debt	1,482,023	1,210,271
Total Current Liabilities	8,745,981	9,318,198
Long-Term Debt, Net	569,653	1,869,795
Derivative Warrant Liability (Note 11)	4,603,470	8,745,508
Derivative Additional Investment Rights Liability (Note 11)	437	515,000
Total Liabilities	13,919,541	20,448,501
Commitments and Contingencies (Notes 7 and 8)
Stockholders' Deficiency (Note 10):
Common stock, $.001 par value; authorized 750,000,000 shares at April 30, 2012 and July 31, 2011, respectively; 346,678,800 and 308,519,768 shares issued and outstanding at April 30, 2012 and July 31, 2011, respectively	346,679	308,520
Additional paid-in capital	347,267,912	338,124,525
Deficit accumulated during the development stage	(356,035,942)	(347,744,756)
Accumulated other comprehensive income	769,883	869,575
Total Stockholders' Deficiency	(7,651,468)	(8,442,136)
TOTAL LIABILITIES AND STOCKHOLDERS' DEFICIENCY	6,268,073	12,006,365
Series A Convertible Preferred Stock [Member]
Stockholders' Deficiency (Note 10):
Preferred Stock Value	0	0
Series B Convertible Preferred Stock [Member]
Stockholders' Deficiency (Note 10):
Preferred Stock Value	$ 0	$ 0