XML 21 R9.htm IDEA: XBRL DOCUMENT v3.8.0.1
Inventories
3 Months Ended
Mar. 31, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories are stated at the lower of cost (principally standard cost, which approximates actual cost on a first in, first out basis) or net realizable value.
 
Inventories consisted of the following (in thousands):
 
March 31,
2018
 
December 30,
2017
Raw materials
$
37,156

 
$
33,101

Work-in-progress
21,719

 
20,134

Finished goods
14,905

 
14,613

 
$
73,780

 
$
67,848