Inventories (Tables)

9 Months Ended

Sep. 29, 2012

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are stated at the lower of cost or market.  Cost is determined using the last-in, first-out (LIFO) method, which generally matches current costs of inventory sold with current revenues, for substantially all inventories.  Inventories are summarized as follows:

	September 29, 2012			December 31, 2011
Raw materials	$	22,058		$	19,624
Work-in-process	14,276			13,116
Finished goods	48,601			45,840
Supplies, repair parts and other	463			351
LIFO reserve	(14,407		)	(14,992		)
Total inventories	$	70,991		$	63,939