Inventories, Net (Tables)

9 Months Ended

Sep. 26, 2020

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are summarized as follows:

	September 26, 2020		December 28, 2019
Raw materials	$	29,707	$	32,377
Work-in-process	14,218		18,642
Finished goods	61,457		64,978
Supplies and other	173		260
LIFO reserve	(18,613)		(20,748)
Inventories, net	$	86,942	$	95,509