Note 14 - Foreign Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
European Union [Member]
Foreign Countries:
European Union	$ 128	$ 51
Other Countries [Member]
Foreign Countries:
European Union	4	15
Foreign [Member]
Foreign Countries:
European Union	132	66
United States [Member]
Foreign Countries:
European Union	4,650	4,121
European Union	$ 4,782	$ 4,187