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SUBSEQUENT EVENTS (Narrative) (Details)		1 Months Ended			3 Months Ended		6 Months Ended		12 Months Ended
SUBSEQUENT EVENTS (Narrative) (Details)	Sep. 03, 2019 USD ($)	Feb. 21, 2023 $ / shares shares	Jan. 31, 2023 USD ($) shares	Jan. 31, 2022 USD ($) $ / shares shares	Jan. 31, 2023 USD ($)	Jan. 31, 2022 USD ($) $ / shares	Jan. 31, 2023 USD ($) shares	Jan. 31, 2022 USD ($) $ / shares	Jul. 31, 2022 $ / shares shares	Jan. 31, 2023 $ / shares shares	Jan. 31, 2023 $ / shares shares	Jul. 31, 2021 $ / shares	Sep. 03, 2019 $ / shares shares	Sep. 03, 2019 $ / shares shares
Subsequent Event Line Items
Proceeds from Issuance of Private Placement							$ 1,771,970	$ 2,392,998
Warrant exercise price \| $ / shares									$ 0.95	$ 0.93		$ 1.14
Legal fees					$ 172,686	$ 141,233	278,256	$ 270,746
Stock options granted \| shares									805,000
Weighted average exercise price of options granted \| $ / shares									$ 0.82
Non-brokered private placement [Member]
Subsequent Event Line Items
Proceeds from Issuance of Private Placement				$ 2,407,000
Number of units in non-brokered private placement \| shares				6,017,500
Sale of stock, price per share \| $ / shares				$ 0.4		$ 0.4		$ 0.4
Warrant exercise price \| $ / shares				$ 0.6		$ 0.6		$ 0.6
Expiry date				Jan. 28, 2024
Legal fees			$ 4,889	$ 14,002
Eridanus Capital LLC [Member] \| Loans payable [Member]
Subsequent Event Line Items
Warrant exercise price \| (per share)											$ 0.6		$ 1	$ 0.8
Amount paid to lender	$ 15,000						$ 250,000
Number of shares issue to purchase warrants \| shares										575,000	575,000		1,150,000	1,150,000
Interest rate							15.00%
Director [Member] \| Non-brokered private placement [Member]
Subsequent Event Line Items
Proceeds from Issuance of Private Placement				$ 830,000
Number of units in non-brokered private placement \| shares				2,075,000
Finder Warrants [Member] \| Non-brokered private placement [Member]
Subsequent Event Line Items
Warrant exercise price \| $ / shares											$ 0.6
Expiry date			Jan. 31, 2025
Number of finders warrants issued \| shares			6,900
Subsequent event [Member] \| Non-brokered private placement [Member]
Subsequent Event Line Items
Legal fees							$ 1,420
Subsequent event [Member] \| Second And Final Tranche [Member] \| Non-brokered private placement [Member]
Subsequent Event Line Items
Proceeds from Issuance of Private Placement							3,000,000
Subsequent event [Member] \| Second tranche [Member] \| Non-brokered private placement [Member]
Subsequent Event Line Items
Proceeds from Issuance of Private Placement							$ 1,220,374
Number of units in non-brokered private placement \| shares							3,050,934
Sale of stock, price per share \| $ / shares											0.4
Warrant exercise price \| $ / shares											0.6
Expiry date							Feb. 17, 2025
Subsequent event [Member] \| Eridanus Capital LLC [Member] \| Loans payable [Member]
Subsequent Event Line Items
Warrant exercise price \| $ / shares											$ 0.6
Amount paid to lender							$ 250,000
Number of shares issue to purchase warrants \| shares										575,000	575,000
Interest rate							15.00%
Subsequent event [Member] \| Employees, officers and directors [Member]
Subsequent Event Line Items
Stock options granted \| shares		1,045,000
Weighted average exercise price of options granted \| $ / shares		$ 0.53
Weighted average price, exercisable term		5 years
Subsequent event [Member] \| Director [Member] \| Non-brokered private placement [Member]
Subsequent Event Line Items
Proceeds from Issuance of Private Placement							$ 367,174
Subsequent event [Member] \| Director [Member] \| Second tranche [Member] \| Non-brokered private placement [Member]
Subsequent Event Line Items
Number of units in non-brokered private placement \| shares							917,936
Subsequent event [Member] \| Finder Warrants [Member] \| Non-brokered private placement [Member]
Subsequent Event Line Items
Warrant exercise price \| $ / shares											$ 0.6
Expiry date							Feb. 17, 2025
Number of finders warrants issued \| shares							3,540