Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Income Taxes [Abstract]

Summary of income tax recovery

(in thousands)	2024		2023
Deferred income tax:
Origination of temporary differences	$	211	$	2,578
Prior year over (under) provision		25		(235)
Income tax recovery	$	236	$	2,343

Summary of reconciliation of the effective rate of income tax

(in thousands)	2024			2023
(Loss) Income before taxes – continuing operations	$	(91,826)		$	87,021
Combined Canadian tax rate		26.50	%		26.50	%
Income tax recovery (expense) at combined rate		24,334			(23,061)
Difference in tax rates		12,224			(6,536)
Non-deductible amounts		(12,864)			(5,042)
Non-taxable amounts		2,294			33,314
Change in deferred tax assets not recognized		(25,485)			3,925
Change in tax rates, legislation		(112)			(80)
Prior year under provision		25			(235)
Other		(180)			58
Income tax recovery	$	236		$	2,343

Summary of deferred income tax assets (liabilities)

	At December 31		At December 31
(in thousands)	2024		2023
Deferred income tax assets:
Property, plant and equipment, net	$	387	$	387
Post-employment benefits		268		295
Reclamation obligations		11,080		11,699
Non-capital tax loss carry forwards		13,806		18,489
Capital loss carry forward		17,738		25,088
Other		10,155		9,348
Deferred income tax assets-gross		53,434		65,306
Set-off against deferred income tax liabilities		(53,434)		(65,306)
Deferred income tax assets-per balance sheet	$	—	$	—
Deferred income tax liabilities:
Inventory	$	(850)	$	(852)
Property, plant and equipment, net		(35,872)		(40,707)
Investments-equity instruments and uranium		(17,738)		(25,088)
Other		(1,345)		(1,266)
Deferred income tax liabilities-gross		(55,805)		(67,913)
Set-off of deferred income tax assets		53,434		65,306
Deferred income tax liabilities-per balance sheet	$	(2,371)	$	(2,607)

Summary of deferred income tax liability continuity

(in thousands)	2024		2023
Balance-January 1	$	(2,607)	$	(4,950)
Recognized in income		236		2,343
Balance-December 31	$	(2,371)	$	(2,607)

Summary of deferred income tax assets not recognized

	At December 31		At December 31
(in thousands)	2024		2023
Deferred income tax assets not recognized
Property, plant and equipment	$	9,323	$	6,985
Tax losses-capital		44,381		38,445
Tax losses-operating		86,494		69,919
Tax credits		2,500		1,126
Other deductible temporary differences		1,127		2,881
Deferred income tax assets not recognized	$	143,825	$	119,356

Summary of Canadian tax losses and tax credits not recognized

	Expiry		At December 31		At December 31
(in thousands)	Date		2024		2023
Tax losses-gross		2025-2044	$	370,207	$	324,965
Tax benefit at tax rate of 26% - 27%				100,300		88,408
Set-off against deferred tax liabilities				(13,805)		(18,489)
Total tax loss assets not recognized			$	86,495	$	69,919
Tax credits		2025-2036		1,127		1,126
Total tax credit assets not recognized			$	1,127	$	1,126