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Note 4 - Supplemental Balance Sheet Information - Composition of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Cost	$ 28,446	$ 28,247
Accumulated Amortization	13,959	13,140
Net	14,487	15,107
Customer Relationships [Member]
Cost	13,219	13,092
Accumulated Amortization	7,185	6,656
Net	6,034	6,436
Patented Technology [Member]
Cost	5,657	5,606
Accumulated Amortization	5,454	5,322
Net	203	284
Trade Names [Member]
Cost	4,667	4,647
Accumulated Amortization	748	647
Net	3,919	4,000
Trademarks [Member]
Cost	3,403	3,402
Accumulated Amortization	0	0
Net	3,403	3,402
Other Intangible Assets [Member]
Cost	1,500	1,500
Accumulated Amortization	572	515
Net	$ 928	$ 985

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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