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INVENTORIES (Schedule of Inventory) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Jun. 30, 2018
INVENTORIES [Abstract]      
Raw materials $ 12,947 $ 12,986 $ 15,185
Work-in-process 1,048 715 939
Finished goods 63,463 59,121 56,520
Total $ 77,458 $ 72,822 $ 72,644