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Note 14 - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Balance $ 346,657 $ 278,063 $ 340,558 $ 262,346
Other comprehensive loss (1,275) (1,428) (4,695) (310)
Balance 356,415 304,490 356,415 304,490
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]        
Balance     (16,423)  
Other comprehensive (loss) income before reclassifications     (5,126)  
Amount reclassified from accumulated other comprehensive loss [1]     351  
Other comprehensive loss     (4,775)  
Balance (21,198)   (21,198)  
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]        
Balance     3,960  
Other comprehensive (loss) income before reclassifications     1,286  
Amount reclassified from accumulated other comprehensive loss [1]     (1,237)  
Other comprehensive loss     49  
Balance 4,009   4,009  
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]        
Balance     19  
Other comprehensive (loss) income before reclassifications     1  
Amount reclassified from accumulated other comprehensive loss [1]     0  
Other comprehensive loss     1  
Balance 20   20  
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]        
Balance     407  
Other comprehensive (loss) income before reclassifications     61  
Amount reclassified from accumulated other comprehensive loss [1]     (31)  
Other comprehensive loss     30  
Balance 437   437  
AOCI Attributable to Parent [Member]        
Balance (15,457) (15,428) (12,037) (16,546)
Other comprehensive (loss) income before reclassifications     (3,778)  
Amount reclassified from accumulated other comprehensive loss [1]     (917)  
Other comprehensive loss     (4,695)  
Balance $ (16,732) $ (16,856) $ (16,732) $ (16,856)
[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 income/expense, net on the accompanying condensed consolidated statements of operations.