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Note 13 - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Balance $ 225,995 $ 196,598 $ 208,743 $ 185,799
Other comprehensive loss (6,242) (1,836) (10,120) (1,627)
Balance 236,033 200,202 236,033 200,202
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]        
Balance     (14,911)  
Other comprehensive (loss) income before reclassifications     (16,733)  
Amount reclassified from accumulated other comprehensive loss     381  
Other comprehensive loss     (16,352)  
Balance (31,263)   (31,263)  
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]        
Balance     (116)  
Other comprehensive (loss) income before reclassifications     5,939  
Amount reclassified from accumulated other comprehensive loss     122  
Other comprehensive loss     6,061  
Balance 5,945   5,945  
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]        
Balance     29  
Other comprehensive (loss) income before reclassifications     (11)  
Amount reclassified from accumulated other comprehensive loss     0  
Other comprehensive loss     (11)  
Balance 18   18  
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]        
Balance     (3,865)  
Other comprehensive (loss) income before reclassifications     (7)  
Amount reclassified from accumulated other comprehensive loss [1]     189  
Other comprehensive loss     182  
Balance (3,683)   (3,683)  
AOCI Attributable to Parent [Member]        
Balance (22,741) (17,854) (18,863) (18,063)
Other comprehensive (loss) income before reclassifications     (10,812)  
Amount reclassified from accumulated other comprehensive loss     692  
Other comprehensive loss     (10,120)  
Balance $ (28,983) $ (19,690) $ (28,983) $ (19,690)
[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) income, net on the accompanying condensed consolidated statements of operations.