Note 19 - Condensed Statement of Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Income Statements, Captions [Line Items]
Securities (losses) gains									$ (19)	$ 405	$ 1,788
Net unrealized gain (loss) on investment equity securities									250	(1,026)	926
Provision for income taxes	$ 302	$ 494	$ 325	$ 1,123	$ 1,560	$ 634	$ 647	$ 824	2,244	3,665	3,961
Net income	$ 1,134	$ 2,344	$ 1,887	$ 4,118	$ 5,447	$ 3,415	$ 3,349	$ 3,710	9,483	15,921	16,492
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Dividends from subsidiary									4,407	4,329	5,733
Interest, dividend and other income									517	358	386
Securities (losses) gains									(19)	405	1,788
Net unrealized gain (loss) on investment equity securities									250	(1,026)	926
Total income									5,155	4,066	8,833
Expenses									661	496	491
Income before applicable income taxes and equity in undistributed income of subsidiary									4,494	3,570	8,342
Provision for income taxes									(1)	(235)	724
Income before equity in undistributed income of subsidiary									4,495	3,805	7,618
Equity in undistributed income of subsidiary									4,988	12,116	8,874
Net income									$ 9,483	$ 15,921	$ 16,492