Note 14 - Asset Retirement Obligations (Tables)

12 Months Ended

Jul. 31, 2023

Notes Tables

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

	July 31, 2023			July 31, 2022
Balance, beginning of year	$	17,276		$	3,939
Accretion		949			630
Assumed from Roughrider Acquisition (Note 4)		445			-
Assumed from UEX Acquisition (Note 3)		211			-
Assumed from U1A Acquisition (Note 5)		-			12,707
Addition		14
Liabilities settled in cash		(220	)
Foreign exchange difference		(5	)		-
Balance, end of year	$	18,670		$	17,276

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

	July 31, 2023		July 31, 2022
Undiscounted amount of estimated cash flows	$	29,064	$	28,739
Payable in years		1 to 23		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 2024	$	1,515
Fiscal 2025		1,472
Fiscal 2026		2,489
Fiscal 2027		2,509
Fiscal 2028		1,990
Remaining balance		19,091
	$	29,066