Note 4 - Product Inventories (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Inventory, Current [Table Text Block]

	September 30, 2012		December 31, 2011
Raw materials	$	3,254	$	4,193
Work in process		5,349		2,982
Finished goods		45		45
Total product inventories	$	8,648	$	7,220