INVENTORIES (Tables)

3 Months Ended

Mar. 31, 2020

INVENTORIES

Schedule of components of inventories

Our inventories are valued at the lower of cost or net realizable value and computed on a first-in, first-out (FIFO) basis. Components of inventories are as follows:

	March 31,		December 31,
	2020		2019
Parts and raw materials	$	154,573	$	134,816
Work in process		15,704		10,269
Finished goods		65,022		84,934
Total	$	235,299	$	230,019