CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIENCY - USD ($)	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014
Preferred Stock
Balance (in shares)	1,250	930
Issuance of preferred stock in financing (in shares)	500	2,875
Issuance of common stock upon conversion of preferred stock (in shares)	(580)	(2,555)
Stock-based compensation
Net loss
Preferred stock dividend
Currency translation adjustment
Balance (in shares)	1,170	1,250
Common Stock
Balance	$ 778,512	$ 580,330
Balance (in shares)	778,512,092	580,329,160
Issuance of common stock as employee compensation	$ 5,810	$ 4,333
Issuance of common stock as employee compensation (in shares)	5,809,780	4,333,333
Issuance of common stock in exchange for services		$ 7,633
Issuance of common stock in exchange for services (in shares)		7,633,333
Issuance of common stock upon conversion of preferred stock	$ 25,775	$ 85,167
Issuance of common stock upon conversion of preferred stock (in shares)	25,775,002	85,166,663
Issuance of common stock for preferred stock make whole payments	8,983	23,792
Issuance of common stock for preferred stock make whole payments (in shares)	8,983,048	23,791,817
Exercise of stock options for cash	$ 6,416	$ 526
Exercise of stock options for cash (in shares)	6,416,316	526,306
Exercise of warrants for cash		$ 76,731
Exercise of warrants for cash (in shares)		76,731,480
Stock-based compensation
Net loss
Preferred stock dividend
Currency translation adjustment
Balance	$ 825,496	$ 778,512
Balance (in shares)	825,496,238	778,512,092
Additional Paid-In Capital
Balance	$ 362,307,678	$ 356,401,812
Issuance of common stock as employee compensation	127,190	125,667
Issuance of common stock in exchange for services		279,147
Issuance of common stock upon conversion of preferred stock	$ (25,775)	$ (85,167)
Issuance of common stock for preferred stock make whole payments	147,617	666,058
Exercise of additional investment rights		$ 237,566
Exercise of stock options for cash
Exercise of warrants for cash		$ 4,419,725
Stock-based compensation		$ 262,871
Net loss
Preferred stock dividend
Currency translation adjustment
Balance	$ 362,556,710	$ 362,307,678
Accumulated Deficit
Balance	$ (369,948,322)	$ (367,888,576)
Issuance of common stock as employee compensation
Issuance of common stock in exchange for services
Issuance of common stock upon conversion of preferred stock
Issuance of common stock for preferred stock make whole payments
Exercise of additional investment rights
Exercise of stock options for cash
Exercise of warrants for cash
Stock-based compensation
Net loss	$ (2,193,358)	$ (1,417)
Preferred stock dividend	(339,583)	$ (2,058,329)
Currency translation adjustment
Balance	(372,481,263)	$ (369,948,322)
Accumulated Other Comprehensive Income (Loss)
Balance	$ 772,074	$ 765,103
Issuance of common stock as employee compensation
Issuance of common stock in exchange for services
Issuance of common stock upon conversion of preferred stock
Issuance of common stock for preferred stock make whole payments
Exercise of additional investment rights
Exercise of stock options for cash
Exercise of warrants for cash
Stock-based compensation
Net loss
Preferred stock dividend
Currency translation adjustment	$ 36,663	$ 6,971
Balance	808,737	772,074
Balance	(6,090,058)	(10,141,332)
Issuance of common stock as employee compensation	$ 133,000	130,000
Issuance of common stock in exchange for services		$ 286,780
Issuance of common stock upon conversion of preferred stock
Issuance of common stock for preferred stock make whole payments	156,600	689,850
Exercise of additional investment rights		$ 237,566
Exercise of stock options for cash	$ 6,416	526
Exercise of warrants for cash		4,496,456
Stock-based compensation		262,871
Net loss	(2,193,358)	(1,417)
Preferred stock dividend	(339,583)	(2,058,329)
Currency translation adjustment	36,663	6,971
Balance	$ (8,290,320)	$ (6,090,058)