Inventories are stated at the lower of cost (First-In, First-Out (FIFO) Method) and net realizable value and consist of the following classes:



(thousands)	Sep 24, 2017			Dec 31, 2016
Raw materials	$	95,903		$	70,148
Work in process	11,002			7,659
Finished goods	12,611			13,300
Less: reserve for inventory obsolescence	(4,213		)	(2,724		)
Total manufactured goods, net	115,303			88,383
Materials purchased for resale (distribution products)	36,649			32,869
Less: reserve for inventory obsolescence	(2,076		)	(1,233		)
Total materials purchased for resale (distribution products), net	34,573			31,636
Total inventories	$	149,876		$	120,019