Note 4 - Product Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Inventory, Current [Table Text Block]

	2012		2011
Raw materials	$	2,337	$	4,193
Work in process		3,666		2,982
Finished goods		1,413		45
Total product inventories	$	7,416	$	7,220