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NOTE 2 - INVENTORIES
3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
NOTE 2 - INVENTORIES
Inventories consisted of the following components:            
   

March 31,

2019

   

December 31,

2018

 
 (in thousands)            
Raw material   $ 2,994     $ 2,925  
Work-in-process     2,105       1,584  
Finished goods     645       676  
Inventories   $ 5,744     $ 5,185