Note 3 - Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Goodwill [Table Text Block]

(in thousands)
Carrying amount at December 31, 2020	$	58,590
Effect of change in currency translation		(371	)
Carrying amount at March 31, 2021	$	58,219

Schedule of Intangible Assets and Goodwill [Table Text Block]

			March 31, 2021							December 31, 2020
			(in thousands)
Amortizable intangible assets:	Weighted Average Life*		Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Distribution agreements/customer relationships		8.6	$	17,924	$	(7,864	)	$	10,060	$	18,237	$	(7,746	)	$	10,491
Existing technology		4.9		38,931		(21,413	)		17,518		38,761		(20,674	)		18,087
Trade names and patents		5.1		8,576		(4,511	)		4,065		8,681		(4,362	)		4,319
Total amortizable intangible assets			$	65,431	$	(33,788	)	$	31,643	$	65,679	$	(32,782	)	$	32,897
Indefinite-lived intangible assets:									245							254
Total intangible assets								$	31,888						$	33,151

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

	Amortization
Year Ending December 31,	Expense
	(in thousands)
2021 (remainder of year)	$	4,373
2022		5,798
2023		5,690
2024		5,385
2025		4,273
Thereafter		6,124
Total	$	31,643