Note 3 - Inventories (Tables)

6 Months Ended

Jun. 30, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	June 30, 2014		December 31, 2013
	(Dollars in thousands)
Raw materials and purchased parts for assembly	$	4,174	$	6,326
Self-manufactured assembly parts and finished products		14,118		15,963
Total	$	18,292	$	22,289