INVENTORIES (Tables)

3 Months Ended

Mar. 31, 2018

INVENTORIES [Abstract]

Components of inventories

The components of inventories are as follows:

	March 31,		December 31,
	2018		2017
Raw materials	$	52,315	$	46,712
Work in progress		19,949		17,688
Finished goods		30,429		43,319
Inventories	$	102,693	$	107,719