Inventories (Tables)

9 Months Ended

Sep. 30, 2016

Inventories [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consist of the following:

(In thousands)	September 30, 2016		December 31, 2015
Raw materials and component parts	$	28,498	$	30,569
Finished goods		76,806		67,777
	$	105,304	$	98,346