Stockholders’ Deficiency - Stockholders’ deficiency transactions (Details) - USD ($)		1 Months Ended	3 Months Ended
	Aug. 02, 2015	Sep. 01, 2015	Oct. 31, 2015	Oct. 31, 2014
Net loss for six months ended			$ (1,731,265)	$ 49,623
Currency translation adjustment			(2,936)
Stockholders' Deficiency			$ (9,876,324)
Common Stock
Total, Shares	825,496,238		870,325,349
Total, Amount	$ 825,495		$ 870,325
Issuance of common stock on conversion of convertible preferred stock, Shares			27,999,999
Issuance of common stock on conversion of convertible preferred stock, Amount			$ 28,000
Issuance of common stock as make-whole payments on convertible preferred stock, Shares			13,576,707
Issuance of common stock as make-whole payments on convertible preferred stock, Amount			$ 13,577
Issuance of common stock for services, Shares			300,000
Issuance of common stock for services, Amount			$ 300
Exercise of employee stock options, Shares			2,952,404
Exercise of employee stock options, Amount			$ 2,953
Additional Paid-In Capital
Total, Amount		$ 362,556,710	362,660,077
Issuance of common stock on conversion of convertible preferred stock, Amount			(28,000)
Issuance of common stock as make-whole payments on convertible preferred stock, Amount			99,823
Issuance of common stock for services, Amount			$ 4,200
Exercise of employee stock options, Amount
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			$ 113,400
Issuance of common stock for services, Amount			4,500
Exercise of employee stock options, Amount			$ 2,953