Inventories (Tables)

12 Months Ended

Dec. 31, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consist of the following (in thousands):

	December 31, 2013		December 31, 2012
Raw materials	$	10,765	$	9,994
Work in process	534		385
Finished goods	20,158		16,524
Total	$	31,457	$	26,903