Note 21 - Parent Company Financial Information - Statements of Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Net income	$ 7,155	$ 4,526
Change in other assets	1,206	(210)
Other liabilities	95	25
Net cash provided by operating activities	9,416	6,279
Net decrease in loans	32,354	16,785
Cash received in business combination		25,761
Net cash provided by investing activities	(22,371)	30,774
Cash paid for fractional shares		(1)
Common stock repurchased	(908)
Dividends paid	(1,484)	(1,123)
Net cash used by financing activities	17,335	(19,921)
Net decrease in cash and cash equivalents	4,380	17,132
Cash and cash equivalents, beginning	40,007	22,875
Cash and cash equivalents, ending	44,387	40,007
Stock issued to acquire Great State Bank		15,495
Parent Company [Member]
Net income	7,155	4,526
Equity in undistributed income of affiliate	(5,731)	(3,462)
Change in other assets	142	(80)
Other liabilities	1	31
Net cash provided by operating activities	1,567	1,015
Net decrease in loans
Cash received in business combination
Net cash provided by investing activities
Cash paid for fractional shares		(1)
Common stock repurchased	(908)
Dividends paid	(1,484)	(1,123)
Net cash used by financing activities	(2,392)	(1,124)
Net decrease in cash and cash equivalents	(825)	(109)
Cash and cash equivalents, beginning	1,409	1,518
Cash and cash equivalents, ending	584	1,409
Elimination of Company’s existing investment in Great State Bank		198
Stock issued to acquire Great State Bank		$ 15,495