Note 15 - Segmented Information - Operating Results by Geographic Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Mineral property expenditures	$ 9,071	$ 5,452	$ 21,448	$ 13,650
General and administrative	4,219
Depreciation, amortization and accretion	551	506	1,620	1,504
Total operating costs	13,841	9,703	37,382	29,450
Loss from operations	(13,841)	(3,484)	(37,345)	5,197
Other expenses	(7,667)	(7,811)	19,606	(9,801)
Loss before income taxes	(21,508)	(11,295)	(17,739)	(4,604)
Sales and service revenue	0	20,217	224	125,440
Cost of revenues	0	(13,998)	(187)	(90,793)
Gross profit	0	6,219	37	34,647
General and administrative	4,219	3,745	14,314	14,296
UNITED STATES
Mineral property expenditures	5,767	3,451	13,281	9,047
General and administrative	3,021
Depreciation, amortization and accretion	521	501	1,554	1,486
Total operating costs	9,309	6,632	25,006	21,139
Loss from operations	(9,309)	(413)	(24,969)	13,508
Other expenses	(237)	(190)	(625)	(1,147)
Loss before income taxes	(9,546)	(603)	(25,594)	12,361
Sales and service revenue		20,217	224	125,440
Cost of revenues		(13,998)	(187)	(90,793)
Gross profit		6,219	37	34,647
General and administrative		2,680	10,171	10,606
CANADA
Mineral property expenditures	3,122	1,711	7,563	3,546
General and administrative	1,207
Depreciation, amortization and accretion	29	4	63	14
Total operating costs	4,358	2,769	11,733	7,207
Loss from operations	(4,358)	(2,769)	(11,733)	(7,207)
Other expenses	(7,430)	(7,622)	20,223	(8,655)
Loss before income taxes	(11,788)	(10,391)	8,490	(15,862)
Sales and service revenue		0	0	0
Cost of revenues		0	0	0
Gross profit		0	0	0
General and administrative		1,054	4,107	3,647
PARAGUAY
Mineral property expenditures	182	290	604	1,057
General and administrative	(9)
Depreciation, amortization and accretion	1	1	3	4
Total operating costs	174	302	643	1,104
Loss from operations	(174)	(302)	(643)	(1,104)
Other expenses	0	1	8	1
Loss before income taxes	$ (174)	(301)	(635)	(1,103)
Sales and service revenue		0	0	0
Cost of revenues		0	0	0
Gross profit		0	0	0
General and administrative		$ 11	$ 36	$ 43