Note 30 - Quarterly Financial Information (Unaudited) - Quarterly Financial Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net interest income	$ 9,434	$ 9,276	$ 9,217	$ 8,304	$ 8,351	$ 8,455	$ 8,595	$ 8,369	$ 36,231	$ 33,770	$ 32,601
Provision for loan and lease losses											3,175
Total income	1,250	959	437	949	640	808	881	854	3,595	3,183	4,315
Noninterest expense	7,815	7,125	7,668	10,001	6,616	5,574	6,122	6,593	32,609	24,905	26,434
Income before income taxes and equity in undistributed net income of subsidiaries	2,869	3,110	1,986	(748)	2,375	3,689	3,354	2,630	7,217	12,048	7,307
Income tax expense	572	744	430	212	505	1,164	964	829	1,958	3,462	1,580
Income available to common shareholders	$ 2,297	$ 2,366	$ 1,556	$ (960)	$ 1,729	$ 2,475	$ 2,340	$ 1,751	$ 5,259	$ 8,295	$ 5,527
(Loss) earnings per share - basic (in dollars per share)	$ 0.17	$ 0.18	$ 0.11	$ (0.07)	$ 0.13	$ 0.18	$ 0.18	$ 0.13	$ 0.39	$ 0.62
Weighted average shares - basic (in shares)	13,370	13,369	13,367	13,360	13,341	13,340	13,338	13,303	13,367	13,331	13,475
(Loss) earnings per share - diluted (in dollars per share)	$ 0.17	$ 0.18	$ 0.11	$ (0.07)	$ 0.13	$ 0.18	$ 0.18	$ 0.13	$ 0.39	$ 0.62
Weighted average shares - diluted (in shares)	13,476	13,439	13,425	13,403	13,395	13,377	13,370	13,340	13,425	13,365	13,520
Net income					$ 1,870	$ 2,525	$ 2,390	$ 1,801	$ 5,259	$ 8,586	$ 5,727
Less: preferred stock accretion and extinguishment costs					102					102
Less: Preferred stock dividends					$ 39	$ 50	$ 50	$ 50		$ 189	$ 200