Inventories (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Inventory, Current [Table Text Block]

	September 30, 2012	December 31, 2011
Raw materials	$  3,250	$   4,135
Work in progress	2,498	3,790
Finished goods	2,414	2,363
Inventories	$  8,162	$ 10,288