Note 7 - Other Real Estate Owned (Details) - Activity Within Other Real Estate Owned - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Activity Within Other Real Estate Owned [Abstract]
Balance beginning of period	$ 10,715	$ 8,809	$ 13,224	$ 9,225
Real estate acquired from borrowers	225	85	1,725	330
Valuation allowance		(51)	(750)	(505)
Properties sold	(988)	(220)	(4,247)	(427)
Balance end of period	$ 9,952	$ 8,623	$ 9,952	$ 8,623