Note 5 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($)	Jul. 31, 2021	Jul. 31, 2020	Jul. 30, 2020
Cost	$ 12,810,757	$ 12,571,933
Accumulated Depreciation	(5,452,720)	(5,552,116)
Net Book Value	7,358,037	7,019,817	$ 7,019,817
Hobson Processing Facility [Member]
Cost	6,642,835	6,642,835
Accumulated Depreciation	(851,075)	(773,933)
Net Book Value	5,791,760	5,868,902
Mining Equipment [Member]
Cost	2,355,341	2,393,579
Accumulated Depreciation	(2,313,489)	(2,342,518)
Net Book Value	41,852	51,061
Logging Equipment and Vehicles [Member]
Cost	1,923,983	1,924,969
Accumulated Depreciation	(1,774,887)	(1,736,806)
Net Book Value	149,096	188,163
Computer Equipment [Member]
Cost	326,056	550,243
Accumulated Depreciation	(283,645)	(486,467)
Net Book Value	42,411	63,776
Furniture and Fixtures [Member]
Cost	184,941	170,701
Accumulated Depreciation	(172,302)	(169,946)
Net Book Value	12,639	755
Building [Member]
Cost	297,518	297,518
Accumulated Depreciation	(57,322)	(42,446)
Net Book Value	240,196	255,072
Land [Member]
Cost	1,080,083	592,088
Accumulated Depreciation
Net Book Value	$ 1,080,083	$ 592,088