Note 24 - Parent Company Financial Statements - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Other income	$ 336	$ 445
Total income	4,184	4,019
Interest expense	6,028	5,155
Noninterest expense	37,255	32,206
Income before income taxes and equity in undistributed net income of subsidiaries	20,464	19,359
Income tax expense	5,503	3,629
Net income	14,961	15,730
Parent Company [Member]
Other income	13	12
Dividends from subsidiaries	12,500	4,000
Total income	12,513	4,012
Management fees paid to subsidiaries	310	303
Interest expense	1,233	1,461
Noninterest expense	844	1,433
Total expenses	2,387	3,197
Income before income taxes and equity in undistributed net income of subsidiaries	10,126	815
Income tax expense	1	1
Income before equity in undistributed net income of subsidiaries	10,125	814
Equity in undistributed net income of subsidiaries	4,836	14,916
Net income	$ 14,961	$ 15,730