Note 3 - Inventories (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31,		December 31,
	2019		2018
	(Dollars in thousands)
Raw materials and purchased parts for assembly	$	28,749	$	26,914
Self-manufactured assembly parts and finished products		14,233		18,110
Total	$	42,982	$	45,024