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Note 5 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Derivative Asset, Total	$ 3,875	$ 57
Long-Term Debt, Fair Value	112,500	112,500
Long-Term Debt, Gross	112,500	112,500
Fair Value, Nonrecurring [Member]
Assets, Fair Value Disclosure		0
Foreign Exchange Forward [Member] | Maximum [Member]
Derivative Asset, Total	300	100
Interest Rate Swap [Member]
Derivative Asset, Total	3,900	100
Investments Held in Rabbi Trust [Member]
Debt Securities, Available-for-Sale, Total	$ 100	$ 300

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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