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NOTE 2 - INVENTORIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw material $ 2,994 $ 2,925
Work-in-process 2,105 1,584
Finished goods 645 676
Inventories $ 5,744 $ 5,185