Note 20 - Financial Instruments (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Derivatives Hedging Instruments	$ 0	$ 0	$ 0	$ 0
Fair Value, Inputs, Level 2 [Member]
Long-Term Debt, Fair Value	364,000		364,000		$ 271,000
Forward Contracts [Member]
Foreign Currency Contract, Asset, Fair Value Disclosure	0		0		1,000
Foreign Currency Contracts, Liability, Fair Value Disclosure	1,000		1,000		1,000
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member]
Derivative Asset, Notional Amount	$ 270,000		$ 270,000		$ 308,000