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Note 20 - Other Retirement Benefits - Schedule Of Assumptions Used To Calculate Other Post Retirement Plan Net Benefit Costs (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%