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Inventories (Tables)
6 Months Ended
Jun. 30, 2014
Inventories [Abstract]  
Schedule of inventories
Inventories are comprised of the following:
 
 
June 30, 2014
  
December 31, 2013
 
 
 
(in thousands)
 
Raw materials
 
$
1,854
  
$
1,834
 
Work in process
  
1,657
   
1,490
 
Finished goods
  
1,040
   
1,305
 
Total Inventories, net
 
$
4,551
  
$
4,629