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INVENTORIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Raw materials $ 12,646 $ 10,807
Work in process 3,948 3,820
Finished goods 9,670 7,087
Allowance for excess or obsolete inventory (1,344) (1,319)
Inventory, net $ 24,920 $ 20,395