Note 4 - Product Inventories (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	September 30, 2013		December 31, 2012
Raw materials	$	1,359	$	2,337
Work in process		1,614		3,666
Finished goods		2,256		1,413
Total product inventories	$	5,229	$	7,416