Note 3 - Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31,		December 31,
	2017		2016
	(Dollars in thousands)
Raw materials and purchased parts for assembly	$	10,333	$	5,429
Self-manufactured assembly parts and finished products		7,471		6,571
Total	$	17,804	$	12,000