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