Stockholders’ Deficiency - Stockholders’ deficiency transactions (Details) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 02, 2015	Aug. 31, 2015	Apr. 30, 2016	Jan. 31, 2015	Apr. 30, 2016	Apr. 30, 2015
Net (loss)			$ 918,361	$ (1,396,157)	$ (860,293)	$ (1,858,450)
Currency translation adjustment					(20,782)
Stockholders' Deficiency					$ (8,878,451)
Common Stock
Total, Shares	825,496,238				903,333,142
Total, Amount	$ 825,495				$ 903,333
Issuance of common stock on conversion of convertible preferred stock, Shares					33,333,332
Issuance of common stock on conversion of convertible preferred stock, Amount					$ 33,333
Issuance of common stock as make-whole payments on convertible preferred stock, Shares					18,264,207
Issuance of common stock as make-whole payments on convertible preferred stock, Amount					$ 18,264
Issuance of common stock for services, Shares					300,000
Issuance of common stock for services, Amount					$ 300
Exercise of employee stock options, Shares					25,939,365
Exercise of employee stock options, Amount					$ 25,939
Additional Paid-In Capital
Total, Amount		$ 362,556,710			362,771,817
Issuance of common stock on conversion of convertible preferred stock, Amount					(33,333)
Issuance of common stock as make-whole payments on convertible preferred stock, Amount					116,736
Issuance of common stock for services, Amount					4,200
Issuance of stock options for services					27,344
Issuance of Stock Options for Executive deferred salary					123,147
Exercise of employee stock options, Amount					(22,987)
Change to Stockholders Equity
Total, Amount	$ (8,290,320)
Issuance of common stock on conversion of convertible preferred stock, Amount
Issuance of common stock as make-whole payments on convertible preferred stock, Amount					135,000
Issuance of common stock for services, Amount					4,500
Issuance of stock options for services					27,344
Issuance of Stock Options for Executive deferred salary					123,147
Exercise of employee stock options, Amount					$ 2,953