CAPITAL STOCK (Details 4)	12 Months Ended
	Jul. 31, 2017 $ / shares shares
Warrant [Member]
Class of Warrant or Right [Line Items]
Weighted Average Exercise Price | $ / shares	$ 1.78
Number of Warrants Outstanding | shares	19,676,560
Weighted Average Remaining Contractual Remaining Contractual Life (Years)	2 years 14 days
Warrants1 [Member]
Class of Warrant or Right [Line Items]
Weighted Average Exercise Price | $ / shares	$ 1.20
Number of Warrants Outstanding | shares	4,604,631
Expiry Date	Mar. 10, 2019
Weighted Average Remaining Contractual Remaining Contractual Life (Years)	1 year 7 months 10 days
Warrants2 [Member]
Class of Warrant or Right [Line Items]
Weighted Average Exercise Price | $ / shares	$ 1.35
Number of Warrants Outstanding | shares	2,600,000
Expiry Date	Jan. 30, 2020
Weighted Average Remaining Contractual Remaining Contractual Life (Years)	2 years 6 months
Warrants3 [Member]
Class of Warrant or Right [Line Items]
Weighted Average Exercise Price | $ / shares	$ 1.95
Number of Warrants Outstanding | shares	50,000
Expiry Date	Jun. 03, 2018
Weighted Average Remaining Contractual Remaining Contractual Life (Years)	10 months 2 days
Warrants4 [Member]
Class of Warrant or Right [Line Items]
Weighted Average Exercise Price | $ / shares	$ 2.00
Number of Warrants Outstanding | shares	9,571,929
Expiry Date	Jan. 20, 2020
Weighted Average Remaining Contractual Remaining Contractual Life (Years)	2 years 5 months 19 days
Warrants5 [Member]
Class of Warrant or Right [Line Items]
Weighted Average Exercise Price | $ / shares	$ 2.35
Number of Warrants Outstanding | shares	2,850,000
Expiry Date	Jun. 25, 2018
Weighted Average Remaining Contractual Remaining Contractual Life (Years)	10 months 24 days