Note 14 - Income Taxes - Uncertain Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Unrecognized tax benefits	$ 1,117	$ 1,117
Additions for tax positions related to the current year	0	0
Additions for tax positions of prior years	0	0
Reductions for tax positions of prior years	0	0
Unrecognized tax benefits	$ 1,117	$ 1,117