Note 6 - Credit Quality Information - Schedule of Loans Held for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Loans, held for sale	$ 28,027	$ 30,171
Loans, held for sale, allowance	1,550	561
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Loans, held for sale	298	333
Loans, held for sale, allowance	10	11
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, held for sale	25,418	26,890
Loans, held for sale, allowance	1,466	420
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member]
Loans, held for sale	0	3
Loans, held for sale, allowance	0	0
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Loans, held for sale	1,025	1,561
Loans, held for sale, allowance	62	115
Commercial Portfolio Segment [Member] \| Agricultural [Member]
Loans, held for sale	88	117
Loans, held for sale, allowance	6	8
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, held for sale	1,194	1,264
Loans, held for sale, allowance	6	7
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, held for sale	4	3
Loans, held for sale, allowance	$ 0	$ 0