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Note 4 - Segment Information - Long-Lived Tangible Assets by Geographical Area (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Long-lived tangible assets	$ 55,435	$ 75,766
Operating Segments [Member]
Long-lived tangible assets	1,227	1,040
Operating Segments [Member] | UNITED STATES
Long-lived tangible assets	1,223	1,026
Operating Segments [Member] | Europe [Member]
Long-lived tangible assets	$ 4	$ 14

X

- Definition

Amount of asset recognized for present right to economic benefit.

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