Note 4 - Loans Receivable, Net - Loans in Nonaccrual Status (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Nonaccrual with no allowance	$ 7,432	$ 6,825
Nonaccrual with an allowance	204
Nonaccrual	7,636
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Nonaccrual with no allowance	1,438	868
Nonaccrual with an allowance	0
Nonaccrual	1,438
Commercial Real Estate Portfolio Segment [Member] | Residential Mortgage [Member]
Nonaccrual with no allowance	1,503	1,307
Nonaccrual with an allowance	204
Nonaccrual	1,707
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Nonaccrual with no allowance	3,658	4,125
Nonaccrual with an allowance	0
Nonaccrual	3,658
Commercial and Agricultural Loans [Member]
Nonaccrual with no allowance	331	50
Nonaccrual with an allowance	0
Nonaccrual	331
Consumer Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Nonaccrual with no allowance	424	413
Nonaccrual with an allowance	0
Nonaccrual	424
Consumer Portfolio Segment [Member] | Other Consumer Loans [Member]
Nonaccrual with no allowance	78	$ 62
Nonaccrual with an allowance	0
Nonaccrual	$ 78