Note 19 - Parent Company Financial Information (Details) - Statements of Operations, Comprehensive Income (Loss), and Changes in Shareholders’ Equity - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Note 19 - Parent Company Financial Information (Details) - Statements of Operations, Comprehensive Income (Loss), and Changes in Shareholders’ Equity [Line Items]
Interest income	$ 10,987	$ 9,992	$ 9,609	$ 9,467	$ 9,540	$ 9,206	$ 8,484	$ 8,599	$ 40,055	$ 35,829	$ 32,615
Net income (loss) before taxes									2,407	2,396	(3,515)
Benefit for income taxes	(9)	(10)	(5)	(2)	22	(6)	(21)	(41)	(26)	(46)	(35)
Shares issued under common stock offering										44,853
Stock based compensation									600	420	325
Exercise of stock options									64	1
Net income (loss)	790	$ 582	$ 533	528	853	$ 297	$ 537	755	2,433	2,442	(3,480)
Total comprehensive income (loss)									(100)	4,638	(7,328)
Balance				112,811				62,899	112,811	62,899	69,902
Balance	113,375				112,811				113,375	112,811	62,899
Parent Company [Member]
Note 19 - Parent Company Financial Information (Details) - Statements of Operations, Comprehensive Income (Loss), and Changes in Shareholders’ Equity [Line Items]
Interest income									34	33	33
Dividend income from subsidiaries											1,859
Total income									34	33	1,892
Trust preferred interest expense									1,114	1,107	1,112
Expenses									572	424	318
Total expenses									1,686	1,531	1,430
Net income (loss) before taxes									(1,652)	(1,498)	462
Benefit for income taxes									(578)	(524)	(489)
Income (loss) before undistributed income (loss) of subsidiaries									(1,074)	(974)	951
Equity in undistributed income (loss) of subsidiaries									3,507	3,416	(4,431)
Shares issued under common stock offering										44,853
Stock based compensation									600	420	325
Exercise of stock options									64	1
Net income (loss)									2,433	2,442	(3,480)
Total other comprehensive income (loss)									(2,533)	2,196	(3,848)
Total comprehensive income (loss)									(100)	4,638	(7,328)
Balance				$ 112,811				$ 62,899	112,811	62,899	69,902
Balance	$ 113,375				$ 112,811				$ 113,375	$ 112,811	$ 62,899