Related Parties (Tables)

12 Months Ended

Dec. 31, 2012

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

	2012	2011	2010
Net sales	$ 1,054	$ 1,980	$ 6,918
Purchases	$ 33,928	$ 37,879	$ 42,867

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

	2012	2011	2010
Net sales	$ 19,336	$ 11,965	$ 15,209
Purchases	$ 7,826	$ 11,168	$ 10,824

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

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

			2012		2011
Accounts receivable
	LSC	$	204	$	133
	Keylink		10,457		11,237
		$	10,661	$	11,370
Accounts payable
	LSC	$	5,308	$	5,106
	Keylink		5,095		6,002
		$	10,403	$	11,108