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Note 3 - Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2021

Goodwill and Intangible Assets Disclosure [Text Block]

3.	Goodwill and Intangible Assets

Goodwill

The change in the carrying amount of goodwill for the three months ended March 31, 2021 is as follows:

(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

Intangible Assets

			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

* Weighted average life in years as of March 31, 2021

Intangible asset amortization expense was $1.5 million and $1.4 million for the three months ended March 31, 2021 and 2020, respectively. Estimated amortization expense of existing amortizable intangible assets for each of the five succeeding years and thereafter as of March 31, 2021 is as follows:

	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