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Note 5 - Loans and Allowance for Credit Losses - Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Beginning balance	$ 41,076	$ 32,912	$ 29,337	[1]
Provision/(reversal) for credit losses	3,878	6,027	3,959
Less loans charged-off	(3,194)	(256)	(627)
Recoveries on loans charged-off	143	258	243
Ending balance	41,903	41,076	32,912
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	0	2,135	0
Ending balance		0	2,135
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance	41,076	35,047	29,337
Ending balance		41,076	35,047
Unfunded Loan Commitment [Member]
Beginning balance	1,156	1,203	1,383	[1]
Provision/(reversal) for credit losses	(516)	(1,092)	(180)
Less loans charged-off	0	0	0
Recoveries on loans charged-off	0	0	0
Ending balance	640	1,156	1,203
Unfunded Loan Commitment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	0	1,045	0
Ending balance		0	1,045
Unfunded Loan Commitment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance	1,156	2,248	1,383
Ending balance		1,156	2,248
Allow for Credit Loss and Unfunded Loan Commitments [Member]
Beginning balance	42,232	34,115	30,720	[1]
Provision/(reversal) for credit losses	3,362	4,935	3,779
Less loans charged-off	(3,194)	(256)	(627)
Recoveries on loans charged-off	143	258	243
Ending balance	42,543	42,232	34,115
Allow for Credit Loss and Unfunded Loan Commitments [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance	0	3,180	0
Ending balance		0	3,180
Allow for Credit Loss and Unfunded Loan Commitments [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance	42,232	37,295	30,720
Ending balance		42,232	37,295
Construction And Land Development Loans [Member]
Beginning balance	2,638	4,150	2,472
Provision/(reversal) for credit losses	(1,279)	(1,826)	1,678
Less loans charged-off	(140)	0	0
Recoveries on loans charged-off	0	0	0
Ending balance	1,219	2,638	4,150
Construction And Land Development Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		314
Ending balance			314
Construction And Land Development Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance		4,464
Ending balance			4,464
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	17,657	16,603	13,719
Provision/(reversal) for credit losses	2,626	3,716	2,951
Less loans charged-off	(2,537)	0	(67)
Recoveries on loans charged-off	80	0	0
Ending balance	17,826	17,657	16,603
Commercial Real Estate Portfolio Segment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		(2,662)
Ending balance			(2,662)
Commercial Real Estate Portfolio Segment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance		13,941
Ending balance			13,941
Single Family Residential Mortgages Loans [Member]
Beginning balance	17,640	7,839	8,486
Provision/(reversal) for credit losses	2,570	5,841	(647)
Less loans charged-off	(93)	0	0
Recoveries on loans charged-off	0	0	0
Ending balance	20,117	17,640	7,839
Single Family Residential Mortgages Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		3,960
Ending balance			3,960
Single Family Residential Mortgages Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance		11,799
Ending balance			11,799
Commercial and Industrial [Member]
Beginning balance	1,804	2,813	3,690
Provision/(reversal) for credit losses	(458)	(818)	(533)
Less loans charged-off	0	(5)	(501)
Recoveries on loans charged-off	2	2	157
Ending balance	1,348	1,804	2,813
Commercial and Industrial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		(188)
Ending balance			(188)
Commercial and Industrial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance		2,625
Ending balance			2,625
SBA Loans [Member]
Beginning balance	621	980	927
Provision/(reversal) for credit losses	636	(156)	53
Less loans charged-off	(62)	(14)	0
Recoveries on loans charged-off	1	227	0
Ending balance	1,196	621	980
SBA Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		(416)
Ending balance			(416)
SBA Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance		564
Ending balance			564
Other Loans [Member]
Beginning balance	716	527	43
Provision/(reversal) for credit losses	(217)	(730)	457
Less loans charged-off	(362)	(237)	(59)
Recoveries on loans charged-off	60	29	86
Ending balance	$ 197	716	527
Other Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		1,127
Ending balance			1,127
Other Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Beginning balance		$ 1,654
Ending balance			$ 1,654
[1] Reserve was under the ALL method in accordance with ASC 450 and ASC 310.

X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

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