Inventories

6 Months Ended

Jul. 01, 2017

Inventories

3. Inventories

Inventories are stated at the lower of average cost or market and consist of the following:

	July 1, 2017		December 31, 2016
	(In thousands)
Raw materials	$	16,349	$	10,290
Work-in-progress		9,880		6,470
Finished goods		605		8,116
	$	26,834	$	24,876

Finished goods inventory consists primarily of completed systems at customer sites that are undergoing installation and acceptance testing.