Note 21 - Parent Only Condensed Financial Statements - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Total income	$ 40,174	$ 35,245
Salaries and employee benefits	16,287	14,110
Other operating expenses	5,313	5,057
Total non-interest expense	27,378	24,565
Income before equity in undistributed income of subsidiary	15,347	15,241
Income tax benefit	(3,810)	(6,147)
Net income	11,537	9,094
Parent Company [Member]
Dividends declared by subsidiary	2,117	2,022
Total income	2,117	2,022
Salaries and employee benefits	110	102
Employee benefit expense	431	103
Legal expense	90	69
Other operating expenses	108	106
Total non-interest expense	739	380
Income before equity in undistributed income of subsidiary	1,378	1,642
Equity in undistributed net income of subsidiary	9,919	7,207
Income before income tax benefit	11,297	8,849
Income tax benefit	240	245
Net income	$ 11,537	$ 9,094