Property, Plant And Equipment (Tables)

12 Months Ended

Dec. 31, 2024

Property plant and equipment [abstract]

Summary of property, plant and equipment continuity

	Plant and Equipment				Mineral		Total
(in thousands)	Owned		Right-of-Use		Properties		PP&E
Cost:
Balance-January 1, 2023	$	108,068	$	763	$	180,219	$	289,050
Additions		1,398		34		1,836		3,268
Disposals		(259)		(28)		(1,242)		(1,529)
Reclamation adjustment (note 11)		3,498		—		—		3,498
Balance-December 31, 2023	$	112,705	$	769	$	180,813	$	294,287
Additions		4,758		1,704		3,583		10,045
Disposals		(683)		(418)		—		(1,101)
Acquisition by Foremost (note 5)		—		—		(238)		(238)
Reclamation adjustment (note 11)		(268)		—		—		(268)
Balance-December 31, 2024	$	116,512	$	2,055	$	184,158	$	302,725
Accumulated amortization, depreciation:
Balance-January 1, 2023	$	(35,150)	$	(395)	$	—	$	(35,545)
Amortization		(188)		—		—		(188)
Depreciation		(3,804)		(140)		—		(3,944)
Disposals		259		27		—		286
Reclamation adjustment (note 11)		50		—		—		50
Balance-December 31, 2023	$	(38,833)	$	(508)	$	—	$	(39,341)
Amortization		(640)		—		—		(640)
Depreciation		(3,983)		(226)		—		(4,209)
Disposals		605		418		—		1,023
Reclamation adjustment (note 11)		103		—		—		103
Balance-December 31, 2024	$	(42,748)	$	(316)	$	—	$	(43,064)
Carrying value:
Balance-December 31, 2023	$	73,872	$	261	$	180,813	$	254,946
Balance-December 31, 2024	$	73,764	$	1,739	$	184,158	$	259,661