Note 5 - Inventories (Tables)

6 Months Ended

Jun. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

(in thousands)	June 30, 2013		December 31, 2012
Raw materials	$	983	$	795
Finished goods		130		87
Total inventories	$	1,113	$	882