CAPITAL STOCK AND ADDITIONAL PAID-IN-CAPITAL (Details)	12 Months Ended
	Jul. 31, 2020 $ / shares shares
Stock Option [Member]
Number of Shares | shares	110,000
Exercise Price | $ / shares	$ 1.5
Expiry Date	Mar. 22, 2021
Stock Option [Member]
Number of Shares | shares	75,000
Exercise Price | $ / shares	$ 0.5
Expiry Date	Mar. 17, 2023
Stock Option [Member]
Number of Shares | shares	350,000
Exercise Price | $ / shares	$ 1.2
Expiry Date	Apr. 19, 2023
Stock Option [Member]
Number of Shares | shares	180,000
Exercise Price | $ / shares	$ 1
Expiry Date	Nov. 30, 2023
Stock Option [Member]
Number of Shares | shares	290,000
Exercise Price | $ / shares	$ 1.00
Expiry Date	Aug. 21, 2024
Stock Option [Member]
Number of Shares | shares	1,005,000
Exercise Price | $ / shares	$ 1.03
Warrant [Member]
Number of Shares | shares	3,516,100
Exercise Price | $ / shares	$ 1.5
Expiry Date	Apr. 18, 2021
Warrant [Member]
Number of Shares | shares	288,125
Exercise Price | $ / shares	$ 1.2
Expiry Date	Aug. 30, 2021
Warrant [Member]
Number of Shares | shares	200,313
Exercise Price | $ / shares	$ 1.2
Expiry Date	Sep. 17, 2021
Warrant [Member]
Number of Shares | shares	962,500
Exercise Price | $ / shares	$ 1.3
Expiry Date	Oct. 16, 2020
Warrant [Member]
Number of Shares | shares	375,000
Exercise Price | $ / shares	$ 1.3
Expiry Date	Nov. 05, 2020
Warrant [Member]
Number of Shares | shares	933,686
Exercise Price | $ / shares	$ 1.3
Expiry Date	Mar. 01, 2021
Warrant [Member]
Number of Shares | shares	518,407
Exercise Price | $ / shares	$ 1
Expiry Date	Jul. 03, 2022
Warrant [Member]
Number of Shares | shares	2,302,517
Exercise Price | $ / shares	$ 1
Expiry Date	Aug. 19, 2022
Warrant [Member]
Number of Shares | shares	1,150,000
Exercise Price | $ / shares	$ 1
Expiry Date	Sep. 03, 2022
Warrant [Member]
Number of Shares | shares	2,225,352
Exercise Price | $ / shares	$ 1.36
Expiry Date	Jul. 31, 2022
Warrant [Member]
Number of Shares | shares	10,246,649
Exercise Price | $ / shares	$ 1.25