Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Loans	$ 979,033	$ 1,068,126
Nonaccrual	197	692
Financial Asset, Not Past Due [Member]
Loans	971,241	1,061,888
Financial Asset, 30 to 59 Days Past Due [Member]
Loans	5,412	3,931
Financial Asset, 60 to 89 Days Past Due [Member]
Loans	1,414	1,276
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	769	339
Commercial Portfolio Segment [Member]
Originated prior	33,847	34,816
Originated 2018	7,407	3,999
Originated 2019	13,442	8,690
Originated 2020	18,059	16,919
Originated 2021	62,055	30,694
Originated 2022	16,737	98,856
Total Term Loans	151,547	193,974
Line of Credit Amortized Basis	28,869	39,116
Loans	180,416	233,090
Nonaccrual	50	0
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	179,272	232,444
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	1,041	383
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	53	263
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Construction Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	2,635	48
Loans	2,635	48
Nonaccrual	0	0
Construction Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	2,635	48
Construction Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	0	0
Construction Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	0
Construction Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member]
Originated prior	163,453	127,174
Originated 2018	59,294	87,921
Originated 2019	75,492	78,200
Originated 2020	75,513	80,663
Originated 2021	73,851	84,465
Originated 2022	45,146	76,838
Total Term Loans	492,749	535,261
Line of Credit Amortized Basis	0	0
Loans	492,749	535,261
Nonaccrual	56	290
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	491,955	534,748
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	367	223
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	371	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Residential Portfolio Segment [Member]
Originated prior	14,719	18,133
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	14,719	18,133
Line of Credit Amortized Basis	0	0
Loans	14,719	18,133
Nonaccrual	29	137
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	14,425	17,855
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	265	141
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	0
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Consumer Portfolio Segment [Member]
Loans	288,514	281,594
Nonaccrual	62	265
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	282,954	276,793
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	3,739	3,184
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	990	1,013
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	769	339
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	8,211	8,087
Nonaccrual	0	0
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, Not Past Due [Member]
Loans	8,034	7,884
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	131	197
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	15	5
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	31	1
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	16,342	26,803
Nonaccrual	0	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, Not Past Due [Member]
Loans	15,870	25,932
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	368	634
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	41	156
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	63	81
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans		10,338
Nonaccrual		0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, Not Past Due [Member]
Loans		10,162
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans		139
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans		20
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans		17
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	26,052	38,715
Nonaccrual	0	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, Not Past Due [Member]
Loans	25,405	37,999
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	446	504
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	67	150
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	134	62
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	41,378	59,135
Nonaccrual	0	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, Not Past Due [Member]
Loans	40,262	58,178
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	700	662
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	317	186
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	99	109
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member]
Loans	86,523	115,381
Nonaccrual	0	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, Not Past Due [Member]
Loans	84,632	113,899
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	1,386	1,034
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	331	408
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	174	40
Consumer Portfolio Segment [Member] | Term Loans Originated in 2022 [Member]
Loans	90,119
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2022 [Member] | Financial Asset, Not Past Due [Member]
Loans	88,962
Consumer Portfolio Segment [Member] | Term Loans Originated in 2022 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	685
Consumer Portfolio Segment [Member] | Term Loans Originated in 2022 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	219
Consumer Portfolio Segment [Member] | Term Loans Originated in 2022 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	253
Consumer Portfolio Segment [Member] | Total Term Loans [Member]
Loans	268,625	258,459
Nonaccrual	0	0
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, Not Past Due [Member]
Loans	263,165	254,054
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	3,716	3,170
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	990	925
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	754	310
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	19,889	23,135
Nonaccrual	62	265
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, Not Past Due [Member]
Loans	19,789	22,739
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	23	14
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	88
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	15	29
Pass [Member]
Loans	963,089	1,049,854
Pass [Member] | Commercial Portfolio Segment [Member]
Originated prior	33,823	34,784
Originated 2018	7,392	3,999
Originated 2019	13,442	8,690
Originated 2020	18,059	16,919
Originated 2021	62,055	30,694
Originated 2022	16,533	98,799
Total Term Loans	151,304	193,885
Line of Credit Amortized Basis	28,619	38,825
Loans	179,923	232,710
Pass [Member] | Construction Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	2,635	48
Loans	2,635	48
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	155,099	116,181
Originated 2018	59,294	87,921
Originated 2019	74,660	78,200
Originated 2020	74,703	78,647
Originated 2021	73,851	83,642
Originated 2022	42,869	76,709
Total Term Loans	480,476	521,300
Line of Credit Amortized Basis	0	0
Loans	480,476	521,300
Pass [Member] | Residential Portfolio Segment [Member]
Originated prior	13,669	16,874
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	13,669	16,874
Line of Credit Amortized Basis	0	0
Loans	13,669	16,874
Pass [Member] | Consumer Portfolio Segment [Member]
Loans	286,386	278,922
Substandard [Member]
Loans	14,235	16,807
Substandard [Member] | Commercial Portfolio Segment [Member]
Originated prior	24	32
Originated 2018	15	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	204	57
Total Term Loans	243	89
Line of Credit Amortized Basis	250	291
Loans	493	380
Substandard [Member] | Construction Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	8,354	10,993
Originated 2018	0	0
Originated 2019	832	0
Originated 2020	810	2,016
Originated 2021	0	823
Originated 2022	2,277	129
Total Term Loans	12,273	13,961
Line of Credit Amortized Basis	0	0
Loans	12,273	13,961
Substandard [Member] | Residential Portfolio Segment [Member]
Originated prior	1,050	1,259
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	1,050	1,259
Line of Credit Amortized Basis	0	0
Loans	1,050	1,259
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans	419	1,207
Doubtful [Member]
Loans	739	931
Doubtful [Member] | Commercial Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Doubtful [Member] | Construction Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Doubtful [Member] | Residential Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans	739	931
Unlikely to be Collected Financing Receivable [Member]
Loans	970	534
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member]
Originated prior	0	0
Originated 2018	0	0
Originated 2019	0	0
Originated 2020	0	0
Originated 2021	0	0
Originated 2022	0	0
Total Term Loans	0	0
Line of Credit Amortized Basis	0	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Consumer Portfolio Segment [Member]
Loans	$ 970	$ 534