Inventories (Tables)

12 Months Ended

Dec. 28, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are summarized as follows:

	2013			2012
Raw materials	$	31,864		$	23,002
Work-in-process	16,880			13,786
Finished goods	57,983			49,251
Supplies, repair parts and other	566			470
LIFO reserve	(13,626		)	(14,264		)
Total inventories	$	93,667		$	72,245