Note 4 - Allowance for Credit Losses- Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Loans	$ 969,430	$ 920,523
Real Estate 1 [Member] | Construction and Land Development [Member]
Loans	52,680	51,840
Real Estate 1 [Member] | Construction and Land Development [Member] | Real Estate [Member]
Loans	38
Real Estate 1 [Member] | Construction and Land Development [Member] | Non Real Estate [Member]
Loans	0
Real Estate 1 [Member] | Construction and Land Development [Member] | Collateral Pledged [Member]
Loans	38
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Loans	344,369	331,421
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Real Estate [Member]
Loans	495
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Non Real Estate [Member]
Loans	0
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Collateral Pledged [Member]
Loans	495
Real Estate 1 [Member] | Other Real Estate Loans [Member]
Loans	447,272	$ 418,456
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Real Estate [Member]
Loans	533
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Non Real Estate [Member]
Loans	0
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Collateral Pledged [Member]
Loans	$ 533