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Note 4 - Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Text Block]

Goodwill and Intangible Assets

The change in the carrying amount of goodwill is as follows:

	December 31,
	2022			2021
(in thousands)
Carrying amount at beginning of period	$	57,689		$	58,590
Effect of change in currency translation		(1,429	)		(901	)
Carrying amount at end of period	$	56,260		$	57,689

Identifiable intangible assets at December 31, 2022 and 2021 consist of the following:

			December 31, 2022							December 31, 2021
(in thousands)	Average				Accumulated							Accumulated
Amortizable intangible assets:	Life*		Gross		Amortization			Net		Gross		Amortization			Net
Distribution agreements/customer relationships		7.2	$	16,124	$	(8,727	)	$	7,397	$	17,689	$	(8,675	)	$	9,014
Existing technology		3.2		37,549		(26,482	)		11,067		38,707		(23,962	)		14,745
Trade names and patents		3.7		7,523		(5,197	)		2,326		8,496		(5,108	)		3,388
Total amortizable intangible assets			$	61,196	$	(40,406	)	$	20,790	$	64,892	$	(37,745	)	$	27,147
Indefinite-lived intangible assets:									224							238
Total intangible assets								$	21,014						$	27,385

* Weighted average life in years as of December 31, 2022

During the year ended December 31, 2022, the Company wrote off approximately $2.5 million of fully amortized intangible assets of certain customer relationships and other intangibles related to discontinued product lines.

Intangible asset amortization expense was $6.1 million and $5.8 million of the years ended December 31, 2022 and 2021, respectively. Estimated amortization expense of existing amortizable intangible assets for each of the five succeeding years and thereafter is as follows:

(in thousands)
2023	$	5,546
2024		5,248
2025		4,020
2026		2,359
2027		1,262
Thereafter		2,355
Total	$	20,790