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NOTE 2 - INVENTORIES (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Inventory Disclosure [Abstract]    
Raw material $ 2,695 $ 2,392
Work-in-process 1,091 1,091
Finished goods 534 685
Inventories $ 4,320 $ 4,168