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INVENTORIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
INVENTORIES [Abstract]    
Raw material $ 2,612 $ 3,703
Work in process 51 27
Finished products 13,028 14,720
Total inventory 15,691 18,450
Products in transit $ 4,000 $ 3,700