Note 23 - Segmented Information - Operating Results by Geographic Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Sales and service revenue	$ 164,389	$ 23,161	$ 0
COST OF SALES AND SERVICES	(114,719)	(15,868)	0
Gross profit	49,670	7,293	0
Mineral property expenditures	18,620	10,154	4,479
General and administrative	20,064	15,026	12,640
Acquisition-related costs	0	3,444	0
Depreciation, amortization and accretion	2,007	1,379	393
Total operating costs	40,803	30,003	17,512
Income (loss) from operations	8,867	(22,710)	(17,512)
Other income (expenses)	(11,304)	27,957	2,695
Income (loss) before income taxes	(2,437)	5,247	(14,817)
United States Texas [Member]
Sales and service revenue	164,389	23,161
COST OF SALES AND SERVICES	(114,719)	(15,868)
Gross profit	49,670	7,293
Mineral property expenditures	12,443	8,870	3,868
General and administrative	13,926	10,755	9,699
Acquisition-related costs	1,985	3,444
Depreciation, amortization and accretion	0	1,358	373
Total operating costs	28,354	24,427	13,940
Income (loss) from operations	21,316	(17,134)	(13,940)
Other income (expenses)	(1,343)	4,959	(2,571)
Income (loss) before income taxes	19,973	(12,175)	(16,511)
United States Arizona [Member]
Sales and service revenue	0	0
COST OF SALES AND SERVICES	0	0
Gross profit	0	0
Mineral property expenditures	4,857	5	8
General and administrative	6,078	4,226	2,894
Acquisition-related costs	16	0
Depreciation, amortization and accretion	112	16	17
Total operating costs	11,063	4,247	2,919
Income (loss) from operations	(11,063)	(4,247)	(2,919)
Other income (expenses)	(9,963)	22,994	5,259
Income (loss) before income taxes	(21,026)	18,747	2,340
United States Wyoming [Member]
Sales and service revenue	0	0
COST OF SALES AND SERVICES	0	0
Gross profit	0	0
Mineral property expenditures	1,320	1,279	603
General and administrative	60	45	47
Acquisition-related costs	6	0
Depreciation, amortization and accretion	0	5	3
Total operating costs	1,386	1,329	653
Income (loss) from operations	(1,386)	(1,329)	(653)
Other income (expenses)	2	4	7
Income (loss) before income taxes	(1,384)	(1,325)	(646)
United States Other States [Member]
Sales and service revenue	164,389	23,161
COST OF SALES AND SERVICES	(114,719)	(15,868)
Gross profit	49,670	7,293
Mineral property expenditures	18,620	10,154	4,479
General and administrative	20,064	15,026	12,640
Acquisition-related costs	2,007	3,444
Depreciation, amortization and accretion	112	1,379	393
Total operating costs	40,803	30,003	17,512
Income (loss) from operations	8,867	(22,710)	(17,512)
Other income (expenses)	(11,304)	27,957	2,695
Income (loss) before income taxes	$ (2,437)	$ 5,247	$ (14,817)