Note 4 - Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Loans	$ 4,840,848	$ 3,293,544
Real Estate [Member]
Loans	43,722	31,998
Business Assets [Member]
Loans	9,712	2,352
Automobiles [Member]
Loans	69	106
Cash Collateral [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Loans	631,940	393,061
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Real Estate [Member]
Loans	6,494	1,346
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Business Assets [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Automobiles [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Cash Collateral [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans	1,038,674	710,468
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Real Estate [Member]
Loans	26,296	24,235
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Business Assets [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Automobiles [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Cash Collateral [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member]
Loans	225,046	211,370
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Real Estate [Member]
Loans	1,821	1,872
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Business Assets [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Automobiles [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Cash Collateral [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member]
Loans	388,143	294,587
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Real Estate [Member]
Loans	4,929	1,093
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Business Assets [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Automobiles [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Cash Collateral [Member]
Loans	0	0
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Loans	598,720	340,224
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Real Estate [Member]
Loans	20	0
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Business Assets [Member]
Loans	9,705	2,352
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Automobiles [Member]
Loans	0	0
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Cash Collateral [Member]
Loans	0	0
Commercial Portfolio Segment [Member] \| Agricultural [Member]
Loans	58,344	54,195
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Real Estate [Member]
Loans	0	0
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Business Assets [Member]
Loans	7	0
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Automobiles [Member]
Loans	0	0
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Cash Collateral [Member]
Loans	0	0
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans	1,238,920	850,300
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Real Estate [Member]
Loans	3,266	2,411
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Business Assets [Member]
Loans	0	0
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Automobiles [Member]
Loans	0	0
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Cash Collateral [Member]
Loans	0	0
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans	372,256	181,544
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Real Estate [Member]
Loans	799	944
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Business Assets [Member]
Loans	0	0
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Automobiles [Member]
Loans	0	0
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Cash Collateral [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Other Loans [Member]
Loans	12,463	10,070
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Real Estate [Member]
Loans	97	97
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Business Assets [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Automobiles [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Cash Collateral [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Indirect Loans [Member]
Loans	255,107	231,242
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Real Estate [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Business Assets [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Automobiles [Member]
Loans	69	102
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Cash Collateral [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Direct Loans [Member]
Loans	21,235	16,483
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Real Estate [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Business Assets [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Automobiles [Member]
Loans	0	4
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Cash Collateral [Member]
Loans	$ 0	$ 0

Note 4 - Loans - Schedule of Collateral Dependent Loans (Details) - USD ($)
$ in Thousands

Sep. 30, 2026

Dec. 31, 2025

Loans

$ 4,840,848

$ 3,293,544

Real Estate [Member]

Loans

43,722

31,998

Business Assets [Member]

Loans