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Note 14 - Employee Benefit Plans (Details Textual) - USD ($) | 12 Months Ended | 48 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023
Defined Benefit Plan Maximum Period Allocated for Calculating Average Compensation |  |  | 10 years
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | $ 797,000 |  | $ 797,000
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax | 8,762,000 |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax | $ 526,000 | $ 560,000 |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 3.00% |  |
Defined Benefit Plan, Funded (Unfunded) Status of Plan | $ (1,780,000) | (1,948,000) | (1,780,000)
Other Liabilities [Member] |  |  |
Defined Benefit Plan, Funded (Unfunded) Status of Plan | $ 2,116,000 | 1,755,000 | $ 2,116,000
Louisville Hourly Plan [Member] |  |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets | 3.30% |  |
Marion Plan [Member] |  |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets | 3.55% |  |
Louisville Salaried Plan [Member] |  |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets | 2.95% |  |
Defined Contribution Plan [Member] |  |  |
Defined Contribution Plan, Cost | $ 486,000 | 404,000 |
Non US Employees Defined Benefit Plan [Member] |  |  |
Defined Benefit Plan, Plan Assets, Administration Expense | $ 348,000 | $ 253,000 |
Minimum [Member] |  |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets | 2.95% | 2.35% |
Minimum [Member] | Defined Benefit Plan, Equity Securities [Member] |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 0.00% |  | 0.00%
Minimum [Member] | Fixed Income Securities [Member] |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 35.00% |  | 35.00%
Minimum [Member] | Non Traditional Securities [Member] |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 0.00% |  | 0.00%
Maximum [Member] |  |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets | 3.55% | 3.40% |
Maximum [Member] | Defined Benefit Plan, Equity Securities [Member] |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 55.00% |  | 55.00%
Maximum [Member] | Fixed Income Securities [Member] |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 100.00% |  | 100.00%
Maximum [Member] | Non Traditional Securities [Member] |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 10.00% |  | 10.00%

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