Note 5 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Jul. 31, 2023
Cost	$ 27,724	$ 26,740
Accumulated Depreciation	(7,765)	(7,012)
Net Book Value	19,959	19,728
Plant and Processing Facilities [Member]
Cost	19,347	19,145
Accumulated Depreciation	(2,528)	(1,998)
Net Book Value	16,819	17,147
Mining Equipment [Member]
Cost	3,499	2,915
Accumulated Depreciation	(2,521)	(2,478)
Net Book Value	978	437
Logging Equipment and Vehicles [Member]
Cost	2,917	2,799
Accumulated Depreciation	(2,147)	(1,989)
Net Book Value	770	810
Computer Equipment [Member]
Cost	300	306
Accumulated Depreciation	(283)	(280)
Net Book Value	17	26
Furniture and Fixtures [Member]
Cost	243	198
Accumulated Depreciation	(187)	(180)
Net Book Value	56	18
Buildings [Member]
Cost	338	297
Accumulated Depreciation	(99)	(87)
Net Book Value	239	210
Land [Member]
Cost	1,080	1,080
Accumulated Depreciation	0	0
Net Book Value	$ 1,080	$ 1,080