Note 5 - Acquired Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2025

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	2025				2024
In Thousands	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Patents		24,715		24,608		24,715		24,533
Customer list		22,017		14,776		22,017		13,122
Trade names		20,535		2,438		18,636		1,875
		67,267		41,822		65,368		39,530

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

All Amounts in Thousands
2026	$	2,313
2027		2,227
2028		1,576
2029		1,469
2030		1,284
Thereafter		8,792
Subtotal		17,661
Indefinite-lived intangible asset balance		7,784
Total	$	25,445