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Note 17 - Stockholders' Equity - Components of Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Balance $ 19,575  
Foreign currency translation adjustments, net of tax expense 2,589 $ 982
Balance 22,467 19,575
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]    
Balance (10,458) (11,440)
Foreign currency translation adjustments, net of tax expense 2,589 982
Net actuarial loss for the year, net of tax 0 0
Amortization for the year, net of tax 0 0
Balance (7,869) (10,458)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]    
Balance (10,387) (11,554)
Foreign currency translation adjustments, net of tax expense 0 0
Net actuarial loss for the year, net of tax 663 607
Amortization for the year, net of tax 526 560
Balance (9,198) (10,387)
AOCI Attributable to Parent [Member]    
Balance (20,845) (22,994)
Foreign currency translation adjustments, net of tax expense 2,589 982
Net actuarial loss for the year, net of tax 663 607
Amortization for the year, net of tax 526 560
Balance $ (17,067) $ (20,845)