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NOTE 2 - INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Inventories
   June 30,
2020
  December 31,
2019
(in thousands)          
Raw material  $2,122   $2,416 
Work-in-process   1,667    1,832 
Finished goods   942    772 
Inventories  $4,731   $5,020