Inventories
 9 Months Ended
Sep. 30, 2016
Inventories [Abstract]  
Inventory Disclosure [Text Block]
5.
Inventories:
 
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