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Note 3 - Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Text Block]

3.	Goodwill and Intangible Assets

Goodwill

The change in the carrying amount of goodwill for the six months ended June 30, 2021 is as follows:

(in thousands)
Carrying amount at December 31, 2020	$	58,590
Effect of change in currency translation		(166	)
Carrying amount at June 30, 2021	$	58,424

Intangible Assets

			June 30, 2021							December 31, 2020
	Weighted		(in thousands)
Amortizable intangible assets:	Average Life*		Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Distribution agreements/customer relationships		8.4	$	18,039	$	(8,267	)	$	9,772	$	18,237	$	(7,746	)	$	10,491
Existing technology		4.7		39,032		(22,403	)		16,629		38,761		(20,674	)		18,087
Trade names and patents		4.9		8,617		(4,756	)		3,861		8,681		(4,362	)		4,319
Total amortizable intangible assets			$	65,688	$	(35,426	)	$	30,262	$	65,679	$	(32,782	)	$	32,897
Indefinite-lived intangible assets:									248							254
Total intangible assets								$	30,510						$	33,151

* Weighted average life in years as of June 30, 2021

Intangible asset amortization expense was $1.5 million for each of the three months ended June 30, 2021 and 2020, respectively, and was $2.9 million for each of the six months ended June 30, 2021 and 2020, respectively. Estimated amortization expense of existing amortizable intangible assets for each of the five succeeding years and thereafter as of June 30, 2021 is as follows:

	Amortization
Year Ending December 31,	Expense
	(in thousands)
2021 (remainder of year)	$	2,923
2022		5,814
2023		5,704
2024		5,398
2025		4,280
Thereafter		6,143
Total	$	30,262