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2. Inventories
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
2. Inventories

The components of inventories are:

   
March 31,
   
December 31,
   
2015
   
2014
   
(In thousands)
           
Raw materials and purchased component parts
  $ 6,188     $ 6,183
Work-in-process
    -       4
Finished goods
    4,578       5,619
    $ 10,766     $ 11,806