Note 10 - Asset Retirement Obligations (Tables)

6 Months Ended

Jan. 31, 2025

Notes Tables

Schedule of Change in Asset Retirement Obligation [Table Text Block]

Balance, July 31, 2024	$	19,625
Assumed from Sweetwater Acquisition (Note 3)		10,392
Accretion		610
Balance, January 31, 2025		30,627
Asset retirement obligations, current		(2,953	)
Asset retirement obligations, non-current	$	27,674

Schedule Of Estimated Cash flow and Assumption Used For ARO [Table Text Block]

	January 31, 2025		July 31, 2024
Undiscounted amount of estimated cash flows	$	50,296	$	29,030
Payable in years		1 to 37		1 to 23
Inflation rate		1.56% to 5.32%		1.56% to 5.32%
Discount rate		3.72% to 6.35%		3.72% to 6.35%

Schedule Of Undiscounted Amounts Of Estimated Cash Flows [Table Text Block]

Fiscal 2025	$	2,953
Fiscal 2026		2,489
Fiscal 2027		2,509
Fiscal 2028		2,157
Fiscal 2029		2,813
Remaining balance		37,375
	$	50,296