Note 5 - Loans and Related Allowance for Loan and Lease Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Individually evaluated for impairment	$ 689	$ 740
Less: allowance for loan and lease losses	14,438	14,342
Collectively evaluated for impairment	13,749	13,602
Beginning balance	14,342	13,459
Charge-offs	(446)	(465)
Recoveries	542	648
Provision	0	700
Ending balance	14,438	14,342
Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	0	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member]
Individually evaluated for impairment	407	10
Less: allowance for loan and lease losses	2,203	1,836
Collectively evaluated for impairment	1,796	1,826
Beginning balance	1,836	1,342
Charge-offs	0	0
Recoveries	5	45
Provision	362	449
Ending balance	2,203	1,836
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	0	0
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member]
Individually evaluated for impairment	167	655
Less: allowance for loan and lease losses	5,597	7,431
Collectively evaluated for impairment	5,430	6,776
Beginning balance	7,431	6,817
Charge-offs	(150)	(313)
Recoveries	23	138
Provision	(1,707)	789
Ending balance	5,597	7,431
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	0	0
Commercial Real Estate Portfolio Segment [Member] \| Multifamily Loan [Member]
Individually evaluated for impairment	0	0
Less: allowance for loan and lease losses	662	454
Collectively evaluated for impairment	662	454
Beginning balance	454	461
Charge-offs	0	0
Recoveries	0	0
Provision	208	(7)
Ending balance	662	454
Commercial Real Estate Portfolio Segment [Member] \| Multifamily Loan [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	0	0
Residential Portfolio Segment [Member]
Individually evaluated for impairment	28	17
Less: allowance for loan and lease losses	2,047	1,740
Collectively evaluated for impairment	2,019	1,723
Beginning balance	1,740	1,683
Charge-offs	0	(27)
Recoveries	61	27
Provision	246	57
Ending balance	2,047	1,740
Residential Portfolio Segment [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	0	0
Commercial And Industrial [Member]
Individually evaluated for impairment	39	42
Less: allowance for loan and lease losses	1,483	882
Collectively evaluated for impairment	1,444	840
Beginning balance	882	1,353
Charge-offs	(40)	(1)
Recoveries	312	194
Provision	329	(664)
Ending balance	1,483	882
Commercial And Industrial [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	0	0
Home Equity Lines of Credit [Member]
Individually evaluated for impairment	48	16
Less: allowance for loan and lease losses	1,753	1,452
Collectively evaluated for impairment	1,705	1,436
Beginning balance	1,452	1,405
Charge-offs	(25)
Recoveries	0	56
Provision	326	(9)
Ending balance	1,753	1,452
Home Equity Lines of Credit [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	0	0
Construction and Other [Member]
Individually evaluated for impairment	0	0
Less: allowance for loan and lease losses	609	533
Collectively evaluated for impairment	609	533
Beginning balance	533	378
Charge-offs	0	0
Recoveries	0	46
Provision	76	109
Ending balance	609	533
Construction and Other [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	0	0
Consumer Portfolio Segment [Member]
Individually evaluated for impairment	0	0
Less: allowance for loan and lease losses	84	14
Collectively evaluated for impairment	84	14
Beginning balance	14	20
Charge-offs	(231)	(124)
Recoveries	141	142
Provision	160	(24)
Ending balance	84	14
Consumer Portfolio Segment [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Less: allowance for loan and lease losses	0	0
Beginning balance	0
Ending balance	$ 0	$ 0

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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