STOCK OPTIONS AND WARRANTS (Narrative) (Details)			3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 06, 2021 $ / shares shares	Sep. 09, 2021 $ / shares shares	May 31, 2022 USD ($) $ / shares	May 31, 2021 USD ($)	May 31, 2022 USD ($) $ / shares shares	May 31, 2021 USD ($) shares	Aug. 31, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (shares)					1,500,000		5,150,000
Stock options granted exercise price | $ / shares					$ 0.1		$ 0.1
Stock based compensation | $			$ 0	$ 9,005	$ 55,877	$ 297,691
Stock options exercised (shares)					113,388	2,920,000
Number of options, exercised					(226,776)		(3,293,224)
Number of warrants issued							1,500,000
Proceeds from stock option exercised | $					$ 0	$ 89,048
Stock options expired					3,450,000	1,100,000	1,100,000
Market price of common shares | $ / shares			$ 0.045		$ 0.045		$ 0.0629
Number of incentive stock options in the money							3,626,776
Intrinsic value of stock options | $							$ 48,589
Number of warrants exercised					2,791,000		2,720,000
Warrants exercised, exercise price | $ / shares					$ 0.06		$ 0.07
Number of warrants forfeited					1,952,500		2,300,000
Consultants 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (shares)	500,000	500,000
Stock options granted exercise price | $ / shares	$ 0.07	$ 0.08
Consultant 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (shares)	250,000
Stock options granted exercise price | $ / shares	$ 0.07
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (shares)	250,000
Stock options granted exercise price | $ / shares	$ 0.07