Note 4 - Loans Receivable, Net - Summary of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Loans	$ 700,637	$ 634,496
Collateral Pledged [Member]
Loans	5,726	5,210
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Loans	109,928	104,508
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Collateral Pledged [Member]
Loans	1,156	643
Commercial Real Estate Portfolio Segment [Member] | Residential Mortgage [Member]
Loans	203,650	172,883
Commercial Real Estate Portfolio Segment [Member] | Residential Mortgage [Member] | Collateral Pledged [Member]
Loans	849	668
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Loans	288,509	264,802
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] | Collateral Pledged [Member]
Loans	3,426	3,567
Commercial Portfolio Segment [Member] | Home Equity Line of Credit [Member] | Collateral Pledged [Member]
Loans	$ 295	$ 332