Note 4 - Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	March 31, 2015		December 31, 2014
Raw materials	$	7,201	$	7,185
Finished goods		4,654		3,803
Total	$	11,855	$	10,988