Note 7 - Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Opening balance	$ 113,028	$ 107,905
Acquired in business combinations (See Note 2)	0	7,140
DAS working capital adjustment	0	196
DAS opening balance sheet reclassification	0	(243)
Sale of Molded Fiber	0	(1,778)
Foreign currency translation	235	(192)
Ending balance	$ 113,263	$ 113,028