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Note 19 - Retirement Plans - Weighted-average Assumptions Used to Determine Benefit Obligation Amounts (Details)
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
UNITED STATES      
Discount rate 5.45% 4.92% 5.13%
Salary increase rate 1.00% 1.50% 1.00%
Interest crediting rate for cash balance plan 4.75% 4.00% 4.00%
Foreign Plan [Member]      
Discount rate 3.49% 3.47% 3.93%
Salary increase rate 2.29% 2.06% 2.71%