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Note 5 - Environmental and Reclamation Activities | 12 Months Ended
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Dec. 31, 2023
Environmental and Reclamation Activities [Abstract] |
Environmental and Reclamation Activities | Note 5: Environmental and Reclamation Activities The liabilities accrued for our reclamation and closure costs at December 31, 2023 and 2022 were as follows (in thousands):
|  | 2023 |  |  | 2022 |
Operating properties: |  |  |  |  |  |  |  |
Greens Creek |  | $ | 39,893 |  |  | $ | 37,212 |
Lucky Friday |  |  | 12,022 |  |  |  | 13,343 |
Keno Hill |  |  | 3,360 |  |  |  | 4,514 |
Casa Berardi |  |  | 11,157 |  |  |  | 11,352 |
Non-operating properties: |  |  |  |  |  |  |  |
Nevada Operations |  |  | 30,539 |  |  |  | 28,171 |
San Sebastian |  |  | 2,061 |  |  |  | 1,989 |
Troy mine |  |  | 5,238 |  |  |  | 6,980 |
Johnny M |  |  | 10,148 |  |  |  | 8,961 |
All other sites |  |  | 6,039 |  |  |  | 4,477 |
Total |  |  | 120,457 |  |  |  | 116,999 |
Reclamation and closure costs, current |  |  | (9,660 | ) |  |  | (8,591 | )
Reclamation and closure costs, long-term |  | $ | 110,797 |  |  | $ | 108,408 |
The activity in our accrued reclamation and closure cost liability for the years ended December 31, 2023, 2022 and 2021 was as follows (in thousands):
Balance at January 31, 2021 |  | $ | 116,048 |
Accruals for estimated costs |  |  | 4,952 |
Accretion expense |  |  | 6,454 |
Revision of estimated cash flows due to changes in reclamation plans |  |  | (8,781 | )
Payment of reclamation obligations |  |  | (5,442 | )
Balance at December 31, 2021 |  |  | 113,231 |
Accruals for estimated costs |  |  | 2,874 |
Accretion expense |  |  | 5,995 |
Revision of estimated cash flows due to changes in reclamation plans |  |  | 452 |
Payment of reclamation obligations |  |  | (5,553 | )
Balance at December 31, 2022 |  |  | 116,999 |
Accruals for estimated costs |  |  | 2,952 |
Accretion expense |  |  | 7,740 |
Revision of estimated cash flows due to changes in reclamation plans |  |  | (29 | )
Payment of reclamation obligations |  |  | (7,205 | )
Balance at December 31, 2023 |  | $ | 120,457 |
Asset Retirement Obligations Below is a reconciliation as of December 31, 2023 and 2022 (in thousands) of the asset retirement obligations (“ARO”) which are included in our total accrued reclamation and closure costs of $120.5 million and $117.0 million, respectively, discussed above. The estimated reclamation and closure costs were discounted using credit adjusted, risk-free interest rates ranging from 5.75% to 14.5% from the time we incurred the obligation to the time we expect to pay the retirement obligation.
|  | 2023 |  |  | 2022 |
Balance January 1 |  | $ | 96,620 |  |  | $ | 95,033 |
Changes in obligations due to changes in reclamation plans |  |  | (29 | ) |  |  | 452 |
Accretion expense |  |  | 7,740 |  |  |  | 5,995 |
Payment of reclamation obligations |  |  | (5,264 | ) |  |  | (4,860 | )
Balance at December 31 |  | $ | 99,067 |  |  | $ | 96,620 |
Payments for reclamation obligations were incurred at Lucky Friday, Greens Creek, Keno Hill and our former Mexico operation San Sebastian. The AROs related to the changes described above were discounted using a credit adjusted, risk-free interest rate of between 2.75% and 7.5% and inflation rates ranging from 2% to 4%.

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