Note 8 - Loans Receivable, Net - Loans in Nonaccrual Status (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Nonaccrual with no allowance	$ 7,068	$ 7,432
Nonaccrual with an allowance	197	204
Nonaccrual	7,265	7,636
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Nonaccrual with no allowance	1,133	1,438
Nonaccrual with an allowance	0	0
Nonaccrual	1,133	1,438
Commercial Real Estate Portfolio Segment [Member] | Residential Mortgage [Member]
Nonaccrual with no allowance	1,429	1,503
Nonaccrual with an allowance	197	204
Nonaccrual	1,626	1,707
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Nonaccrual with no allowance	3,723	3,658
Nonaccrual with an allowance	0	0
Nonaccrual	3,723	3,658
Commercial and Agricultural Loans [Member]
Nonaccrual with no allowance	329	331
Nonaccrual with an allowance	0	0
Nonaccrual	329	331
Consumer Portfolio Segment [Member] | Home Equity Line of Credit [Member]
Nonaccrual with no allowance	351	424
Nonaccrual with an allowance	0	0
Nonaccrual	351	424
Consumer Portfolio Segment [Member] | Other Consumer Loans [Member]
Nonaccrual with no allowance	103	78
Nonaccrual with an allowance	0	0
Nonaccrual	$ 103	$ 78