Note 4 - Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Loans	$ 4,763,876	$ 3,293,544
Real Estate [Member]
Loans	41,325	31,998
Business Assets [Member]
Loans	14,518	2,352
Automobiles [Member]
Loans	68	106
Cash Collateral [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Loans	627,421	393,061
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Real Estate [Member]
Loans	6,548	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	1,016,924	710,468
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Real Estate [Member]
Loans	27,567	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	228,228	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	378,388	294,587
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Real Estate [Member]
Loans	1,552	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	592,431	340,224
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Real Estate [Member]
Loans	0	0
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Business Assets [Member]
Loans	14,510	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	56,799	54,195
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Real Estate [Member]
Loans	0	0
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Business Assets [Member]
Loans	8	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	1,230,110	850,300
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Real Estate [Member]
Loans	2,851	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	360,685	181,544
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Real Estate [Member]
Loans	889	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	12,306	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	239,209	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	67	102
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Cash Collateral [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Direct Loans [Member]
Loans	21,375	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	1	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

Jun. 30, 2026

Dec. 31, 2025

Loans

$ 4,763,876

$ 3,293,544

Real Estate [Member]

Loans

41,325

31,998

Business Assets [Member]

Loans