Note 6 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($)	Apr. 30, 2022	Jul. 31, 2021
Cost	$ 26,404,865	$ 12,810,757
Accumulated Depreciation	(5,955,636)	(5,452,720)
PROPERTY, PLANT AND EQUIPMENT	20,449,229	7,358,037
Net Book Value	20,449,229	7,358,037
Plant and Processing Facilities [Member]
Cost	19,014,877	6,642,835
Accumulated Depreciation	(1,213,972)	(851,075)
PROPERTY, PLANT AND EQUIPMENT	17,800,905	5,791,760
Net Book Value	17,800,905	5,791,760
Mining Equipment [Member]
Cost	2,781,903	2,355,341
Accumulated Depreciation	(2,360,087)	(2,313,489)
PROPERTY, PLANT AND EQUIPMENT	421,816	41,852
Net Book Value	421,816	41,852
Logging Equipment and Vehicles [Member]
Cost	2,672,831	1,923,983
Accumulated Depreciation	(1,826,131)	(1,774,887)
PROPERTY, PLANT AND EQUIPMENT	846,700	149,096
Net Book Value	846,700	149,096
Computer Equipment [Member]
Cost	366,602	326,056
Accumulated Depreciation	(310,604)	(283,645)
PROPERTY, PLANT AND EQUIPMENT	55,998	42,411
Net Book Value	55,998	42,411
Furniture and Fixtures [Member]
Cost	191,051	184,941
Accumulated Depreciation	(176,363)	(172,302)
PROPERTY, PLANT AND EQUIPMENT	14,688	12,639
Net Book Value	14,688	12,639
Buildings [Member]
Cost	297,518	297,518
Accumulated Depreciation	(68,479)	(57,322)
PROPERTY, PLANT AND EQUIPMENT	229,039	240,196
Net Book Value	229,039	240,196
Land [Member]
Cost	1,080,083	1,080,083
Accumulated Depreciation	0	0
PROPERTY, PLANT AND EQUIPMENT	1,080,083	1,080,083
Net Book Value	$ 1,080,083	$ 1,080,083