Inventories (Tables)

12 Months Ended

Dec. 31, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	December 31,
	2013	2012
Raw materials	$2,782	$4,340
Work in progress	1,039	1,815
Finished goods	2,098	2,542
Inventories	$5,919	$8,697