Note 2 - Significant Accounting Policies - Change in Goodwill (Details) $ in Thousands	12 Months Ended
Dec. 31, 2024 USD ($)
Balance December 31, 2022	$ 420,708
Acquisitions during 2023	10,230
Currency translation	(3,445)
Balance December 31, 2023	$ 427,493

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details