Note 8 - Mineral Rights and Properties (Tables)

12 Months Ended

Jul. 31, 2024

Notes Tables

Schedule Of Mineral Rights and Property Acquisition Costs [Table Text Block]

Costs	United States			Canada			Paraguay		Total
Balance at July 31, 2022	$	172,340		$	982		$	15,014	$	188,336
Additions		100			386,562			-		386,662
Impact of foreign currency translation		-			(2,937	)		-		(2,937	)
Balance at July 31, 2023		172,440			384,607			15,014		572,061
Additions		100			1,340			-		1,440
Impact of foreign currency translation		-			(9,424	)		-		(9,424	)
Balance at July 31, 2024	$	172,540		$	376,523		$	15,014	$	564,077
Accumulated Depletion, Amortization and Impairment	United States			Canada			Paraguay		Total
Balance at July 31, 2022	$	(6,388	)	$	-		$	-	$	(6,388	)
Additions		(1	)		-			-		(1	)
Impairment		-			(112	)		-		(112	)
Balance at July 31, 2023		(6,389	)		(112	)		-		(6,501	)
Impact of foreign currency translation		-			7			-		7
Balance at July 31, 2024	$	(6,389	)	$	(105	)	$	-	$	(6,494	)
Carrying Value
Balance at July 31, 2023	$	166,051		$	384,495		$	15,014	$	565,560
Balance at July 31, 2024	$	166,151		$	376,418		$	15,014	$	557,583

Schedule Of Mineral Property Expenditures Incurred by Major Projects [Table Text Block]

	Year Ended July 31,
	2024		2023		2022
Permitting and compliance	$	1,895	$	396	$	676
Property maintenance		3,986		3,608		2,635
Exploration		14,669		9,308		2,582
Development		6,650		1,749		1,995
Production readiness		5,183		3,559		2,266
Total	$	32,383	$	18,620	$	10,154