Note 21 - Reclassifications Out of Other Comprehensive Income (Details) - Items Reclassified to Net Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Available for sale securities
Tax expense related to realized gains on securities sold	$ 1,595	$ 1,587
	3,554	3,415
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Available for sale securities
Realized gains on sales of securities held for sale during the period	52	128
Tax expense related to realized gains on securities sold	18	44
	$ 34	$ 84