Note 3 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Loans and Allowance for Loan Losses by Evaluation Method (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Allowance for loan losses, Collectively evaluated for impairment	$ 8,069	$ 7,674
Allowance for loan losses	8,069	7,674	$ 8,077	$ 8,481
Loans	849,274			803,729
Consumer Real Estate Portfolio Segment [Member]
Allowance for loan losses, Collectively evaluated for impairment	2,119	1,930
Allowance for loan losses	2,119	1,930	2,008	2,165
Loans, Individually evaluated for impairment	188	191
Non-impaired gross loans	216,955	208,786
Loans	217,143	208,977		208,977
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses, Collectively evaluated for impairment	3,470	3,121
Allowance for loan losses	3,470	3,121	3,451	3,853
Loans, Individually evaluated for impairment	5,342	5,386
Non-impaired gross loans	420,046	400,336
Loans	425,388	405,722		405,722
Commercial Non Real Estate Segment [Member]
Allowance for loan losses, Collectively evaluated for impairment	796	1,099
Allowance for loan losses	796	1,099	867	670
Loans, Individually evaluated for impairment	279	301
Non-impaired gross loans	52,059	59,963
Loans	52,338	60,264		60,264
Unallocated Financing Receivables [Member]
Allowance for loan losses, Collectively evaluated for impairment	179	361
Allowance for loan losses	179	361	373	396
Loans, Individually evaluated for impairment	5,809	5,878
Non-impaired gross loans	843,465	797,851
Loans	849,274	803,729
Real Estate Construction Portfolio Segment[Member]
Allowance for loan losses, Collectively evaluated for impairment	707	422
Allowance for loan losses	707	422	485	503
Non-impaired gross loans	69,724	48,841
Loans	69,724	48,841		48,841
Public Sector and IDA Portfolio Segment[Member]
Allowance for loan losses, Collectively evaluated for impairment	336	297
Allowance for loan losses	336	297	376	339
Non-impaired gross loans	49,856	47,899
Loans	49,856	47,899		47,899
Consumer Non Real Estate Portfolio Segment [Member]
Allowance for loan losses, Collectively evaluated for impairment	462	444
Allowance for loan losses	462	444	$ 517	555
Non-impaired gross loans	34,825	32,026
Loans	$ 34,825	$ 32,026		$ 32,026

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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-Name Accounting Standards Codification
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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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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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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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