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4. Inventories
12 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
4. Inventories

The components of inventories are:

   
December 31,
 
(In thousands)
 
2013
   
2012
 
Raw materials and purchased component parts
  $ 7,263     $ 6,871  
Work-in-process
    31       -  
Finished goods
    6,215       3,450  
    $ 13,509     $ 10,321