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Note 6 - Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2025
Table Text Block [Abstract] |
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award | The following table summarizes the incentive compensation grants awarded during the three months ended March 31, 2025:
Grant date |  | Award type |  | Number granted |  |  | Grant date fair value per share
January 15, 2025 |  | Restricted stock |  |  | 325,016 |  |  | 5.41
March 24, 2025 |  | Restricted stock |  |  | 23,826 |  |  | 5.44
Schedule of Accumulated other comprehensive income (loss) | The following table lists the beginning balance, quarterly activity and ending balances, net of income and mining tax, of each component of “Accumulated other comprehensive income (loss), net” (in thousands):
|  | Changes in fair value of derivative contracts designated as hedge transactions |  |  | Adjustments For Pension Plans |  |  | Total Accumulated Other Comprehensive Income (Loss), Net |
Balance January 1, 2025 |  | $ | 5,994 |  |  | $ | (16,260 | ) |  | $ | (10,266 | )
Change in fair value of derivative contracts |  |  | 2,982 |  |  |  | — |  |  |  | 2,982 |
Gains and deferred gains transferred from accumulated other comprehensive income |  |  | 353 |  |  |  | — |  |  |  | 353 |
Balance March 31, 2025 |  | $ | 9,329 |  |  | $ | (16,260 | ) |  | $ | (6,931 | )
Balance January 1, 2024 |  | $ | 13,708 |  |  | $ | (7,871 | ) |  | $ | 5,837 |
Changes in fair value of derivative contracts |  |  | (6,835 | ) |  |  | — |  |  |  | (6,835 | )
Gains and deferred gains transferred from accumulated other comprehensive income |  |  | 1,432 |  |  |  | — |  |  |  | 1,432 |
Balance March 31, 2024 |  | $ | 8,305 |  |  | $ | (7,871 | ) |  | $ | 434 |

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