CAPITAL STOCK (Details 3) - Warrant [Member] - $ / shares	12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Number of Warrants, Beginning Balance	13,953,872	7,859,524	5,009,524
Number of Warrants, Issued	9,571,929	6,594,348	2,850,000
Number of Warrants, Exercised	(1,989,717)
Number of Warrants, Expired	(1,859,524)	(500,000)
Number of Warrants, Ending Balance	19,676,560	13,953,872	7,859,524
Weighted Average Exercise Price, Beginning Balance	$ 1.65	$ 2.38	$ 2.38
Weighted Average Exercise Price, Issued	2.00	1.20	2.35
Weighted Average Exercise Price, Exercised	1.20
Weighted Average Exercise Price, Expired	2.60	1.00
Weighted Average Exercise Price, Ending Balance	$ 1.78	$ 1.65	$ 2.38