Note 4 - Supplemental Balance Sheet Information - Composition of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Cost	$ 25,595	$ 38,685
Accumulated Amortization	14,662	14,128
Net	10,933	24,557
Customer Relationships [Member]
Cost	18,333	18,154
Accumulated Amortization	8,360	7,296
Net	9,973	10,858
Patented Technology [Member]
Cost	5,762	5,690
Accumulated Amortization	5,635	5,428
Net	127	262
Other Intangible Assets [Member]
Cost	1,500	1,500
Accumulated Amortization	667	591
Net	833	909
Trade Names [Member]
Cost	0	9,942
Accumulated Amortization	0	813
Net	0	9,129
Trademarks [Member]
Cost	0	3,399
Accumulated Amortization	0	0
Net	$ 0	$ 3,399