Note 15 - Segmented Information - Operating Results by Geographic Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Sales and service revenue	$ 116	$ 47,931	$ 224	$ 105,223
Cost of revenues	(97)	(33,361)	(187)	(76,795)
Gross profit	19	14,570	37	28,428
Mineral property expenditures	6,691	4,147	12,377	8,198
General and administrative	4,895
Depreciation, amortization and accretion	552	506	1,069	998
Total operating costs	12,138	9,482	23,541	19,747
Income (loss) from operations	(12,119)	5,088	(23,504)	8,681
Other income (expenses)	15,372	5,388	27,273	(1,990)
Income (loss) before income taxes	3,253	10,476	3,769	6,691
General and administrative	4,895	4,829	10,095	10,551
UNITED STATES
Sales and service revenue	116	47,931	224	105,223
Cost of revenues	(97)	(33,361)	(187)	(76,795)
Gross profit	19	14,570	37	28,428
Mineral property expenditures	3,784	2,926	7,514	5,596
General and administrative	3,187
Depreciation, amortization and accretion	525	505	1,032	985
Total operating costs	7,496	7,048	15,696	14,507
Income (loss) from operations	(7,477)	7,522	(15,659)	13,921
Other income (expenses)	(198)	3,038	(389)	(957)
Income (loss) before income taxes	(7,675)	10,560	(16,048)	12,964
General and administrative		3,617	7,150	7,926
CANADA
Sales and service revenue	0	0	0	0
Cost of revenues	0	0	0	0
Gross profit	0	0	0	0
Mineral property expenditures	2,824	777	4,441	1,835
General and administrative	1,724
Depreciation, amortization and accretion	26	(1)	35	10
Total operating costs	4,574	1,974	7,376	4,438
Income (loss) from operations	(4,574)	(1,974)	(7,376)	(4,438)
Other income (expenses)	15,562	2,351	27,654	(1,033)
Income (loss) before income taxes	10,988	377	20,278	(5,471)
General and administrative		1,198	2,900	2,593
PARAGUAY
Sales and service revenue	0	0	0	0
Cost of revenues	0	0	0	0
Gross profit	0	0	0	0
Mineral property expenditures	83	444	422	767
General and administrative	(16)
Depreciation, amortization and accretion	1	2	2	3
Total operating costs	68	460	469	802
Income (loss) from operations	(68)	(460)	(469)	(802)
Other income (expenses)	8	(1)	8	0
Income (loss) before income taxes	$ (60)	(461)	(461)	(802)
General and administrative		$ 14	$ 45	$ 32