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Note 6 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Derivative Asset | $ 4,730 | $ 4,446
Long-Term Debt, Fair Value | 60,000 |
Long-Term Debt, Gross |  | 60,000
Fair Value, Nonrecurring [Member] |  |
Assets, Fair Value Disclosure, Total | 0 | 0
Foreign Exchange Forward [Member] |  |
Derivative Assets (Liabilities), at Fair Value, Net | 200 | 500
Interest Rate Swap [Member] |  |
Derivative Asset | 4,300 | 4,000
Investments Held in Rabbi Trust [Member] |  |
Debt Securities, Available-for-Sale | $ 200 | $ 300

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