4. Inventories (Tables)

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	December 31,
(In thousands)	2014		2013
Raw materials and purchased component parts	$	6,183	$	7,263
Work-in-process		4		31
Finished goods		5,619		6,215
	$	11,806	$	13,509