Note 5 - Environmental and Reclamation Activities (Tables)

12 Months Ended

Dec. 31, 2025

Environmental and Reclamation Activities [Abstract]

Schedule of Reclamation and Closure Costs Liabilities

The liabilities accrued for our reclamation and closure costs at December 31, 2025 and 2024 were as follows (in thousands):


		2025				2024
Operating properties:
Greens Creek		$	51,634			$	38,737
Lucky Friday			14,914				10,982
Keno Hill			3,733				3,500
Non-operating properties:
Nevada			35,885				33,700
Troy mine			3,007				3,385
Johnny M			9,703				10,148
All other sites			7,410				7,454
Total			126,286				107,906
Reclamation and closure costs, current			(13,795	)			(13,748	)
Reclamation and closure costs, non-current		$	112,491			$	94,158

Schedule of Reclamation and Closure Costs Activities

The activity in our accrued reclamation and closure cost liability for the years ended December 31, 2025, 2024 and 2023 was as follows (in thousands):


Balance at January 1, 2023			105,647
Accruals for estimated costs and revisions due to changes in reclamation plans			4,643
Accretion expense			6,217
Payment of reclamation obligations			(7,205	)
Balance at December 31, 2023			109,302
Accruals for estimated costs and revisions due to changes in reclamation plans			816
Accretion expense			6,285
Payment of reclamation obligations			(8,497	)
Balance at December 31, 2024			107,906
Accruals for estimated costs and revisions due to changes in reclamation plans			17,647
Accretion expense			6,157
Payment of reclamation obligations			(5,424	)
Balance at December 31, 2025		$	126,286

Schedule of Change in Asset Retirement Obligation


		2025				2024
Balance January 1		$	107,906			$	109,302
Changes in obligations due to changes in reclamation plans			17,647				816
Accretion expense			6,157				6,285
Payment of asset retirement obligations			(5,424	)			(8,497	)
Balance at December 31		$	126,286			$	107,906