Note 5 - Inventories (Tables)

6 Months Ended

Jun. 30, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

(in thousands)	June 30, 2014		December 31, 2013
	(unaudited)		(audited)
Raw materials	$	911	$	940
Finished goods		125		166
Total inventories	$	1,036	$	1,106