Inventories (Tables)

6 Months Ended

Jun. 30, 2012

Inventory, Net [Abstract]

Schedule of Inventory, Current [Table Text Block]

The following table summarizes our classifications of inventory as of June 30, 2012 and December 31, 2011 (in thousands):

	June 30, 2012		December 31, 2011
Raw materials	$	18,744	$	17,269
Work in process	1,408		1,443
Finished goods on hand	21,784		19,565
Finished goods on loan/consignment	33,343		30,781
Inventory total	75,279		69,058
Non-current inventories	7,835		7,334
Inventories, current	$	67,444	$	61,724