Note 5 - Goodwill and Other Intangibles (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Schedule of Goodwill [Table Text Block]

	(in thousands)
Balance at December 31, 2018	$	29,868
Effects of currency exchange		(8	)
Balance at June 30, 2019	$	29,860

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

	June 30, 2019						December 31, 2018
	Gross				Net		Gross				Net
	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Value		Amortization		Value		Value		Amortization		Value
	(in thousands)
Product technology and intellectual property	$	11,728	$	6,252	$	5,476	$	11,728	$	5,726	$	6,002
Trademarks, tradenames and licenses		2,246		1,626		620		2,246		1,561		685
Customer relationships		10,093		3,920		6,173		10,065		3,806		6,259
Other intangible assets		2,143		1,780		363		2,145		1,399		746
Total identifiable intangible assets	$	26,210	$	13,578	$	12,632	$	26,184	$	12,492	$	13,692

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Amortization expense	$	556	$	414	$	1,111	$	832

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

	Year ended December 31,
	2019		2020		2021		2022		2023		2024
	(in thousands)
Amortization expense	$	1,010	$	1,857	$	1,624	$	1,420	$	1,346	$	1,182