Inventories (Tables)

9 Months Ended

Sep. 26, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are summarized as follows:

	September 26, 2015			December 27, 2014
Raw materials	$	40,983		$	40,649
Work-in-process	23,346			19,976
Finished goods	61,488			57,913
Supplies and other	236			126
LIFO reserve	(11,197		)	(14,457		)
Inventories	$	114,856		$	104,207