Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Loans by Delinquency and Nonaccrual Status (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Loans	$ 831,842	$ 866,602
Loans	971	403
Commercial Portfolio Segment [Member]
Loans	128,269	136,550
Loans	14	71
Commercial Real Estate Portfolio Segment [Member]
Loans	488,760	487,523
Loans	957	330
Construction Portfolio Segment [Member]
Loans	5,064	5,063
Loans	0	0
Residential Portfolio Segment [Member]
Loans	9,096	9,935
Loans	0	2
Consumer Portfolio Segment [Member]
Loans	200,653	227,531
Loans	0	0
Financial Asset, Not Past Due [Member]
Loans	823,972	857,250
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member]
Loans	127,590	136,421
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	487,803	485,476
Financial Asset, Not Past Due [Member] | Construction Portfolio Segment [Member]
Loans	5,064	5,063
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member]
Loans	9,037	9,933
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member]
Loans	194,478	220,357
Financial Asset, 30 to 59 Days Past Due [Member]
Loans	4,758	6,553
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member]
Loans	665	58
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	951
Financial Asset, 30 to 59 Days Past Due [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Portfolio Segment [Member]
Loans	3	0
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans	4,090	5,544
Financial Asset, 60 to 89 Days Past Due [Member]
Loans	1,561	2,008
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	766
Financial Asset, 60 to 89 Days Past Due [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member]
Loans	56	0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans	1,505	1,242
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	580	388
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans	$ 580	$ 388