Note 14 - Other Comprehensive Income (Loss) (Details) - Comprehensive Income (Loss) Components Income Tax Effect - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Comprehensive Income (Loss) Components Income Tax Effect [Abstract]
Balance	$ 625	$ 619	$ 602
Balance	10,417	5,764	7,276
Balance	11,042	6,383	7,878
Change	6	6	17
Change	213	4,653	(1,512)
Change	219	4,659	(1,495)
Balance	631	625	619
Balance	10,630	10,417	5,764
Balance	$ 11,261	$ 11,042	$ 6,383