Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Credit Risk Profile by Internally Assigned Grade (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Loans	$ 831,842	$ 866,602
Commercial Portfolio Segment [Member]
Loans	128,269	136,550
Commercial Real Estate Portfolio Segment [Member]
Loans	488,760	487,523
Construction Portfolio Segment [Member]
Loans	5,064	5,063
Residential Portfolio Segment [Member]
Loans	9,096	9,935
Consumer Portfolio Segment [Member]
Loans	200,653	227,531
Pass [Member]
Loans	805,379	845,629
Pass [Member] | Commercial Portfolio Segment [Member]
Loans	121,814	130,001
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	476,897	475,870
Pass [Member] | Construction Portfolio Segment [Member]
Loans	0	5,063
Pass [Member] | Residential Portfolio Segment [Member]
Loans	8,731	9,606
Pass [Member] | Consumer Portfolio Segment [Member]
Loans	197,937	225,089
Substandard [Member]
Loans	25,128	18,908
Substandard [Member] | Commercial Portfolio Segment [Member]
Loans	6,455	6,549
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	11,863	11,653
Substandard [Member] | Construction Portfolio Segment [Member]
Loans	5,064	0
Substandard [Member] | Residential Portfolio Segment [Member]
Loans	365	329
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans	1,381	377
Doubtful [Member]
Loans	745	1,479
Doubtful [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans	745	1,479
Unlikely to be Collected Financing Receivable [Member]
Loans	590	586
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Consumer Portfolio Segment [Member]
Loans	$ 590	$ 586