Note 4 - Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	March 31,		December 31,
	2014		2013
Raw materials	$	1,193	$	1,611
Finished goods		934		899
Inventories, net	$	2,127	$	2,510