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Note 19 - Post-retirement Benefits - Analysis of Plan Assets and Expected Rate of Return (Details) - UNITED KINGDOM - Pension Plan [Member] - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Fair value of asset $ 147,273 $ 132,216 $ 137,725
DGF [Member]      
Expected rate of return 8.10% 8.40%  
Fair value of asset $ 68,228 $ 61,872  
LDI [MEmber]      
Expected rate of return 4.90% 4.90%  
Fair value of asset $ 48,618 $ 41,800  
Bond Funds [Member]      
Expected rate of return 5.20% 4.90%  
Fair value of asset $ 29,352 $ 27,286  
Defined Benefit Plan, Equity Securities [Member]      
Expected rate of return 0.00% 1.70%  
Fair value of asset $ 0 $ 369  
Defined Benefit Plan, Other Assets [Member]      
Expected rate of return 5.20% 3.80%  
Fair value of asset $ 1,075 $ 889