Note 9 - Income Taxes - Schedule of Income Taxes on Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Federal	$ 92
State	109	85	16
Foreign	930	601	360
Actual tax expense	$ 1,131	$ 686	$ 376