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Note 4 - Supplemental Balance Sheet Information - Composition of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Cost	$ 28,236	$ 28,247
Accumulated Amortization	13,590	13,140
Net	14,646	15,107
Customer Relationships [Member]
Cost	13,087	13,092
Accumulated Amortization	6,956	6,656
Net	6,131	6,436
Patented Technology [Member]
Cost	5,603	5,606
Accumulated Amortization	5,378	5,322
Net	225	284
Trade Names [Member]
Cost	4,647	4,647
Accumulated Amortization	703	647
Net	3,944	4,000
Trademarks [Member]
Cost	3,399	3,402
Accumulated Amortization	0	0
Net	3,399	3,402
Other Intangible Assets [Member]
Cost	1,500	1,500
Accumulated Amortization	553	515
Net	$ 947	$ 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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