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Note 14 - Employee Benefit Plans - Components of Pension Expense (Benefit) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Service cost $ 0 $ 5
Interest cost on projected benefit obligation 1,236 839
Net amortization of actuarial loss 526 560
Expected return on plan assets (726) (837)
Net periodic benefit cost $ 1,036 $ 567