Note 2 - Loans and Allowance for Credit Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Balance			$ 8,225	$ 7,674	$ 7,674
Charge-offs			(160)	(135)	(367)
Recoveries			207	86	212
Recovery of credit losses	$ 10	$ 310	12	444	706
Balance	10,626	8,069	10,626	8,069	8,225
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Balance			2,342
Balance					2,342
Real Estate Construction Portfolio Segment[Member]
Balance			450	422	422
Charge-offs			0	0	0
Recoveries			0	0	0
Recovery of credit losses			47	285	28
Balance	476	707	476	707	450
Real Estate Construction Portfolio Segment[Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Balance			(21)
Balance					(21)
Consumer Real Estate Portfolio Segment [Member]
Balance			2,199	1,930	1,930
Charge-offs			(17)	0	(13)
Recoveries			102	0	29
Recovery of credit losses			(180)	189	253
Balance	3,365	2,119	3,365	2,119	2,199
Consumer Real Estate Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Balance			1,261
Balance					1,261
Commercial Real Estate Portfolio Segment [Member]
Balance			3,642	3,121	3,121
Charge-offs			0	0	0
Recoveries			25	24	49
Recovery of credit losses			(26)	325	472
Balance	4,341	3,470	4,341	3,470	3,642
Commercial Real Estate Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Balance			700
Balance					700
Commercial Non Real Estate Segment [Member]
Balance			930	1,099	1,099
Charge-offs			(11)	(2)	(2)
Recoveries			3	6	11
Recovery of credit losses			78	(307)	(178)
Balance	1,216	796	1,216	796	930
Commercial Non Real Estate Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Balance			216
Balance					216
Public Sector and IDA Portfolio Segment[Member]
Balance			319	297	297
Charge-offs			0	0	0
Recoveries			0	0	0
Recovery of credit losses			(3)	39	22
Balance	301	336	301	336	319
Public Sector and IDA Portfolio Segment[Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Balance			(15)
Balance					(15)
Consumer Non Real Estate Portfolio Segment [Member]
Balance			506	444	444
Charge-offs			(132)	(133)	(352)
Recoveries			77	56	123
Recovery of credit losses			70	95	291
Balance	593	462	593	462	506
Consumer Non Real Estate Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Balance			72
Balance					72
Unallocated Financing Receivables [Member]
Balance			179	361	361
Charge-offs			0	0	0
Recoveries			0	0	0
Recovery of credit losses			26	(182)	(182)
Balance	$ 334	$ 179	334	$ 179	179
Unallocated Financing Receivables [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Balance			$ 129
Balance					$ 129

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

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