Inventories (Tables)

12 Months Ended

Dec. 30, 2017

Components of Inventories

Inventories consisted of the following:

	December 30, 2017		December 31, 2016
	(in thousands)
Current inventory:
Raw materials	$	33,086	$	35,314
Work in process		6,826		8,131
Finished goods		10,739		9,054
Total current inventory		50,651		52,499
Long term inventory		9,905		6,316
Total inventory	$	60,556	$	58,815