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Note 3 - Loans - Summary of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Loans	$ 917,967		$ 920,523	$ 836,423
Allowance for credit losses	(8,717)	$ (7,446)	(7,446)	(5,828)	$ (5,710)
Loans, net	909,250		913,077
Commercial and Industrial Loans [Member]
Loans	110,937		111,225	103,682
Allowance for credit losses	(617)	(1,874)	(1,874)	(810)	(718)
Consumer and Other Loans [Member]
Loans	8,117		7,581	8,834
Allowance for credit losses	(94)	(309)	(309)	(324)	(340)
Construction and Land Development [Member] | Real Estate 1 [Member]
Loans	48,610		51,840	49,308
Allowance for credit losses	(244)	(546)	(546)	(348)	(345)
Secured by Multi-family Residential Properties [Member] | Real Estate 1 [Member]
Loans	334,302		331,421	290,408
Allowance for credit losses	(2,596)	(1,108)	(1,108)	(969)	(1,077)
Other Real Estate Loans [Member] | Real Estate 1 [Member]
Loans	416,001		418,456	384,191
Allowance for credit losses	$ (5,166)	$ (3,609)	(3,609)	$ (3,377)	$ (3,230)
Consumer and Other Loans [Member] | Consumer and Other Loans [Member]
Loans			$ 7,581

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