Note 16 - Segmented Information - Operating Results by Geographic Segments (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Jul. 31, 2021
Sales and service revenue	$ 57,292	$ 0
COST OF SALES AND SERVICES	(43,434)	0
Gross Profit	13,858	0
Mineral property expenditures	4,051	1,657	$ 1,657
General and administrative	5,722	3,117	3,117
Depreciation, amortization and accretion	492	98	98
Total operating costs	10,265	4,872	4,872
Income (loss) from operations	3,593	(4,872)	(4,872)
Other income (expenses)	(7,378)	2,797	2,797
Income (loss) before income taxes	(3,785)	$ (2,075)	(2,075)
United States Texas [Member]
Sales and service revenue	0
COST OF SALES AND SERVICES	0
Gross Profit	0
Mineral property expenditures	1,603		1,152
General and administrative	3,934		2,602
Depreciation, amortization and accretion	105		90
Total operating costs	5,642		3,844
Income (loss) from operations	(5,642)		(3,844)
Other income (expenses)	(2,668)		27
Income (loss) before income taxes	(8,310)		(3,817)
United States Arizona [Member]
Sales and service revenue	0
COST OF SALES AND SERVICES	0
Gross Profit	0
Mineral property expenditures	29		29
General and administrative	4		4
Depreciation, amortization and accretion	0		0
Total operating costs	33		33
Income (loss) from operations	(33)		(33)
Other income (expenses)	(5)		(5)
Income (loss) before income taxes	(38)		(38)
United States Wyoming [Member]
Sales and service revenue	83
COST OF SALES AND SERVICES	(69)
Gross Profit	14
Mineral property expenditures	1,034		200
General and administrative	371		21
Depreciation, amortization and accretion	375		4
Total operating costs	1,780		225
Income (loss) from operations	(1,766)		(225)
Other income (expenses)	(137)		0
Income (loss) before income taxes	(1,903)		(225)
United States Other States [Member]
Sales and service revenue	57,209
COST OF SALES AND SERVICES	(43,365)
Gross Profit	13,844
Mineral property expenditures	4		20
General and administrative	0		0
Depreciation, amortization and accretion	0		0
Total operating costs	4		20
Income (loss) from operations	13,840		(20)
Other income (expenses)	(1,185)		0
Income (loss) before income taxes	12,655		(20)
CANADA
Sales and service revenue	0
COST OF SALES AND SERVICES	0
Gross Profit	0
Mineral property expenditures	1,058		3
General and administrative	1,395		480
Depreciation, amortization and accretion	11		4
Total operating costs	2,464		487
Income (loss) from operations	(2,464)		(487)
Other income (expenses)	(3,384)		2,774
Income (loss) before income taxes	(5,848)		2,287
PARAGUAY
Sales and service revenue	0
COST OF SALES AND SERVICES	0
Gross Profit	0
Mineral property expenditures	323		253
General and administrative	18		10
Depreciation, amortization and accretion	1		0
Total operating costs	342		263
Income (loss) from operations	(342)		(263)
Other income (expenses)	1		1
Income (loss) before income taxes	$ (341)		$ (262)