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Note 20 - Accumulated Other Comprehensive Income ("AOCI") - Changes in the Components of AOCI (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Balance as of January 1, 2024 | $ 3,329 |
Balance as of March 31, 2024 | 10,279 |
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] |  |
Balance as of January 1, 2024 | 0 | $ 10,581
Other comprehensive income before reclassifications | 8,536 | 0
Amounts reclassed from AOCI | (2,077) | 0
Net current-period other comprehensive income | 6,459 | 0
Balance as of March 31, 2024 | 6,459 | $ 10,581
AOCI, Unrealized Gain (Loss) Related to Equity Method Investments [Member] |  |
Balance as of January 1, 2024 | 3,329 |
Other comprehensive income before reclassifications | 491 |
Amounts reclassed from AOCI | 0 |
Net current-period other comprehensive income | 491 |
Balance as of March 31, 2024 | 3,820 |
AOCI Attributable to Parent [Member] |  |
Balance as of January 1, 2024 | 3,329 |
Other comprehensive income before reclassifications | 9,027 |
Amounts reclassed from AOCI | (2,077) |
Net current-period other comprehensive income | 6,950 |
Balance as of March 31, 2024 | $ 10,279 |

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