Note 6 - Credit Quality Information - Schedule of Loans Held for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Loans, held for sale	$ 53,375	$ 27,439
Loans, held for sale, allowance	2,092	1,472
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Loans, held for sale	10,353	258
Loans, held for sale, allowance	516	9
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, held for sale	22,174	25,690
Loans, held for sale, allowance	1,038	1,428
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member]
Loans, held for sale	0	0
Loans, held for sale, allowance	0	0
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member]
Loans, held for sale	1,583	0
Loans, held for sale, allowance	54	0
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Loans, held for sale	16,846	509
Loans, held for sale, allowance	469	25
Commercial Portfolio Segment [Member] \| Agricultural [Member]
Loans, held for sale	88	88
Loans, held for sale, allowance	5	6
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, held for sale	1,895	894
Loans, held for sale, allowance	7	4
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, held for sale	436	0
Loans, held for sale, allowance	$ 3	$ 0