Related Parties (Tables)

12 Months Ended

Dec. 31, 2011

Related Parties [Abstract]

Schedule of Sales and Purchases with Related Parties [Table Text Block]

Net sales to, and purchases from, LSC were as follows for years ended December 31

	2011	2010	2009
Net sales	$ 1,980	$ 6,918	$ 8,967
Purchases	$ 37,879	$ 42,867	$ 32,868

Net sales to, and purchases from, companies owned by Keylink were as follows for years ended December 31

	2011	2010	2009
Net sales	$ 11,965	$ 15,209	$ 11,373
Purchases	$ 11,168	$ 10,824	$ 6,252

Schedule of Due to/Due from Related Parties [Table Text Block]

Accounts receivable from, and accounts payable to, LSC, Eris and Keylink were as follows as of December 31

			2011		2010
Accounts receivable
	LSC	$	133	$	900
	Keylink		11,237		7,869
		$	11,370	$	8,769
Accounts payable
	LSC	$	5,106	$	7,171
	Eris		5,832		4,499
	Keylink		6,002		5,783
		$	16,940	$	17,453