INVENTORIES (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Schedule of components of inventory

Inventories consist of the following:

	September 30, 2018		December 31, 2017
Raw materials	$	31,259	$	16,255
Work-in-process	7,485		6,120
Finished goods	17,431		13,049
Supplies	321		318
	$	56,496	$	35,742