Related Parties (Tables)

6 Months Ended

Jun. 30, 2012

Related Parties [Abstract]

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

		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2012		2011		2012		2011
Net sales	$	274	$	505	$	321	$	952
Purchases	$	9,001	$	9,541	$	16,419	$	18,494

		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2012		2011		2012		2011
Net sales	$	4,971	$	18	$	9,443	$	1,204
Purchases	$	2,323	$	3,017	$	4,127	$	5,880

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

		June 30,		December 31,
		2012		2011
Accounts receivable
LSC	$	264	$	133
Keylink		9,557		11,237
	$	9,821	$	11,370
Accounts payable
LSC	$	6,594	$	5,106
Keylink		5,774		6,002
Eris		5,491		5,832
	$	17,859	$	16,940