Note 5 - Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Goodwill [Table Text Block]

	As of December 31,
	2018			2017
Balance at beginning of year	$	23,844		$	23,426
Additions for acquisitions		6,361			-
Purchase accounting adjustments		-			257
Divestiture adjustment		(135	)
Effects of currency exchange		(202	)		161
Balance at end of year	$	29,868		$	23,844

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

	December 31, 2018						December 31, 2017
	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	$	5,726	$	6,002	$	10,267	$	4,908	$	5,359
Trademarks, tradenames and licenses		2,246		1,561		685		1,948		1,468		480
Customer relationships		10,065		3,806		6,259		5,383		3,299		2,084
Other intangible assets		2,145		1,399		746		1,575		1,264		311
Total identifiable intangible assets	$	26,184	$	12,492	$	13,692	$	19,173	$	10,939	$	8,234

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

	Year ended December 31,
	2018		2017		2016
			(in thousands)
Amortization expense	$	1,760	$	1,790	$	1,605

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

	Year ended December 31,
	2019		2020		2021		2022		2023
	(in thousands)
Amortization expense	$	2,088	$	1,839	$	1,624	$	1,420	$	1,347