Inventories, Net (Tables)

3 Months Ended

Mar. 27, 2021

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are summarized as follows:

	March 27, 2021		December 26, 2020
Raw materials	$	33,877	$	31,167
Work-in-process	15,653		13,305
Finished goods	61,826		59,271
Supplies and other	169		167
LIFO reserve	(21,817)		(18,511)
Inventories, net	$	89,708	$	85,399