Note 9 - Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	(Dollars in thousands)
Year ending December 31:
2020	$	12,983
2021		12,983
2022		12,729
2023		12,610
2024		11,255
Thereafter		123,660
Total	$	186,220

Schedule of Goodwill [Table Text Block]

	2019		2018
	(Dollars in thousands)
Goodwill as of January 1,	$	19,950	$	21,037
Goodwill acquired		—		12,710
Goodwill impairment charge		—		(13,464	)
Translation differences		190		(333	)
Goodwill as of December 31,	$	20,140	$	19,950