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Note 19 - Retirement Plans - Weighted-average Assumptions Used to Determine Net Pension (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Effective rate for interest cost 4.67% 5.13% 2.53%
Salary increase rate 1.85% 2.10% 1.85%
Pension Plan [Member] | UNITED STATES      
Effective rate for service cost 4.88% 5.04% 3.45%
Effective rate for interest cost 4.85% 5.02% 2.97%
Salary increase rate 1.50% 1.00% 1.00%
Expected rate of return on plan assets 7.10% 7.50% 5.30%
Interest crediting rate for cash balance plan 4.00% 3.85% 2.58%
Pension Plan [Member] | Foreign Plan [Member]      
Effective rate for service cost 3.11% 3.44% 1.60%
Effective rate for interest cost 3.43% 3.80% 1.20%
Salary increase rate 2.46% 2.71% 2.39%
Expected rate of return on plan assets 3.93% 4.16% 2.67%