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, 2025	Dec. 31, 2024
Loans	$ 748,264	$ 820,300
Commercial Portfolio Segment [Member]
Loans	111,160	127,276
Commercial Real Estate Portfolio Segment [Member]
Loans	486,463	507,900
Construction Portfolio Segment [Member]
Loans	0	5,064
Residential Portfolio Segment [Member]
Loans	7,709	8,274
Consumer Portfolio Segment [Member]
Loans	142,932	171,786
Pass [Member]
Loans	730,198	789,715
Pass [Member] \| Commercial Portfolio Segment [Member]
Loans	106,338	122,958
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member]
Loans	475,528	489,522
Pass [Member] \| Construction Portfolio Segment [Member]
Loans	0	0
Pass [Member] \| Residential Portfolio Segment [Member]
Loans	7,501	7,984
Pass [Member] \| Consumer Portfolio Segment [Member]
Loans	140,831	169,251
Substandard [Member]
Loans	14,051	29,867
Substandard [Member] \| Commercial Portfolio Segment [Member]
Loans	1,187	4,318
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member]
Loans	10,935	18,378
Substandard [Member] \| Construction Portfolio Segment [Member]
Loans	0	5,064
Substandard [Member] \| Residential Portfolio Segment [Member]
Loans	208	290
Substandard [Member] \| Consumer Portfolio Segment [Member]
Loans	1,721	1,817
Doubtful [Member]
Loans	3,694	192
Doubtful [Member] \| Commercial Portfolio Segment [Member]
Loans	3,635	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	59	192
Unlikely to be Collected Financing Receivable [Member]
Loans	321	526
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	$ 321	$ 526