Inventories (Tables)

6 Months Ended

Jun. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

The components of inventories follow:

(in thousands)	June 30,  2013		December 31, 2012
Work-in-process and raw materials	$	252	$	346
Finished goods		821		402
Total inventories	$	1,073	$	748