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Note 20 - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Balance |  | $ 262,346 | $ 208,743
Net current period other comprehensive income (loss) |  | 4,509 | 2,317
Balance |  | 340,558 | 262,346
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |
Balance |  | (23,107) | (14,911)
Other comprehensive income (loss) before reclassifications |  | 7,221 | (7,391)
Amounts reclassified from accumulated other comprehensive income (loss) |  | (537) | (805)
Net current period other comprehensive income (loss) |  | 6,684 | (8,196)
Balance |  | (16,423) | (23,107)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] |  |  |
Balance |  | 5,539 | (116)
Other comprehensive income (loss) before reclassifications |  | (1,579) | 5,655
Amounts reclassified from accumulated other comprehensive income (loss) |  | 0 | 0
Net current period other comprehensive income (loss) |  | (1,579) | 5,655
Balance |  | 3,960 | 5,539
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] |  |  |
Balance |  | 18 | 29
Other comprehensive income (loss) before reclassifications |  | 1 | (11)
Amounts reclassified from accumulated other comprehensive income (loss) | [1] | 0 | 0
Net current period other comprehensive income (loss) |  | 1 | (11)
Balance |  | 19 | 18
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |
Balance |  | 1,004 | (3,865)
Other comprehensive income (loss) before reclassifications |  | (542) | 5,119
Amounts reclassified from accumulated other comprehensive income (loss) |  | (55) | (250)
Net current period other comprehensive income (loss) |  | (597) | 4,869
Balance |  | 407 | 1,004
AOCI Attributable to Parent [Member] |  |  |
Balance |  | (16,546) | (18,863)
Other comprehensive income (loss) before reclassifications |  | 5,101 | 3,372
Amounts reclassified from accumulated other comprehensive income (loss) |  | (592) | (1,055)
Net current period other comprehensive income (loss) |  | 4,509 | 2,317
Balance |  | $ (12,037) | $ (16,546)
[1] | This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP plan. This expense is reflected in other expense, net on the accompanying consolidated statement of operations.

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