Note 4 - Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Loans	$ 4,788,402	$ 3,293,544
Real Estate [Member]
Loans	50,295	31,998
Business Assets [Member]
Loans	16,820	2,352
Automobiles [Member]
Loans	74	106
Cash Collateral [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Loans	626,711	393,061
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Real Estate [Member]
Loans	7,518	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	1,047,722	710,468
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Real Estate [Member]
Loans	35,322	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	231,601	211,370
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Real Estate [Member]
Loans	1,839	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	403,988	294,587
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Real Estate [Member]
Loans	1,576	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	591,409	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	16,812	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	52,414	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	1,219,766	850,300
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Real Estate [Member]
Loans	3,031	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	349,656	181,544
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Real Estate [Member]
Loans	912	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	10,020	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	233,576	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	72	102
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Cash Collateral [Member]
Loans	0	0
Consumer Portfolio Segment [Member] \| Direct Loans [Member]
Loans	21,539	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	2	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

Mar. 31, 2026

Dec. 31, 2025

Loans

$ 4,788,402

$ 3,293,544

Real Estate [Member]

Loans

50,295

31,998

Business Assets [Member]

Loans