Note 14 - Other Comprehensive Income (Loss) (Details) - Comprehensive Income (Loss) Components Income Tax Effect (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Comprehensive Income (Loss) Components Income Tax Effect [Abstract]
Balance	$ 619	$ 602	$ 457
Balance	5,764	7,276	6,146
Balance	6,383	7,878	6,603
Change	6	17	145
Change	4,653	(1,512)	1,130
Change	4,659	(1,495)	1,275
Balance	625	619	602
Balance	10,417	5,764	7,276
Balance	$ 11,042	$ 6,383	$ 7,878