Note 5 - Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	Mar. 31, 2015		Dec. 31, 2014
Raw materials	$	3,023	$	2,505
Work in process		500		406
Inventory consigned to others		119		129
Finished goods		523		729
	$	4,165	$	3,769