Note 4 - Loans - Schedule of Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Loans, gross	$ 4,854,818	$ 3,304,713
Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	15,223	13,909
Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	8,168	3,038
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	47,938	26,215
Financial Asset, Past Due [Member]
Loans, gross	71,329	43,162
Financial Asset, Not Past Due [Member]
Loans, gross	4,783,489	3,261,551
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Loans, gross	631,796	392,871
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	1,127	419
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	2,062	1,018
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	6,942	1,553
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Financial Asset, Past Due [Member]
Loans, gross	10,131	2,990
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	621,665	389,881
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, gross	1,038,288	710,076
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	2,059	8
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	2,122	0
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	11,307	13,184
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Financial Asset, Past Due [Member]
Loans, gross	15,488	13,192
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	1,022,800	696,884
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member]
Loans, gross	224,884	211,231
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	0	116
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	2	163
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	1,811	1,917
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, Past Due [Member]
Loans, gross	1,813	2,196
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	223,071	209,035
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member]
Loans, gross	387,441	294,008
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	929	0
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	0	0
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	9,355	1,093
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, Past Due [Member]
Loans, gross	10,284	1,093
Commercial Real Estate Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	377,157	292,915
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Loans, gross	600,381	341,737
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	2,253	1,064
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	261	174
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	10,287	2,860
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, Past Due [Member]
Loans, gross	12,801	4,098
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	587,580	337,639
Commercial Portfolio Segment [Member] \| Agricultural [Member]
Loans, gross	59,384	55,089
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	314	235
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	45	30
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	145	159
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, Past Due [Member]
Loans, gross	504	424
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	58,880	54,665
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, gross	1,240,324	851,180
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	2,492	9,848
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	2,108	1,122
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	5,880	3,695
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Financial Asset, Past Due [Member]
Loans, gross	10,480	14,665
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	1,229,844	836,515
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, gross	372,710	181,786
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	3,010	75
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	696	54
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	1,180	1,113
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Financial Asset, Past Due [Member]
Loans, gross	4,886	1,242
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	367,824	180,544
Consumer Portfolio Segment [Member] \| Other Loans [Member]
Loans, gross	12,467	10,074
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	22	17
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	82	0
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	98	97
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, Past Due [Member]
Loans, gross	202	114
Consumer Portfolio Segment [Member] \| Other Loans [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	12,265	9,960
Consumer Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, gross	1,240,324	851,180
Consumer Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, gross	372,710	181,786
Consumer Portfolio Segment [Member] \| Indirect Loans [Member]
Loans, gross	265,821	240,110
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	2,959	2,090
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	780	470
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	879	523
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Financial Asset, Past Due [Member]
Loans, gross	4,618	3,083
Consumer Portfolio Segment [Member] \| Indirect Loans [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	261,203	237,027
Consumer Portfolio Segment [Member] \| Direct Loans [Member]
Loans, gross	21,322	16,551
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Loans, gross	58	37
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Loans, gross	10	7
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, gross	54	21
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Financial Asset, Past Due [Member]
Loans, gross	122	65
Consumer Portfolio Segment [Member] \| Direct Loans [Member] \| Financial Asset, Not Past Due [Member]
Loans, gross	$ 21,200	$ 16,486

Note 4 - Loans - Schedule of Past Due Loans (Details) - USD ($)
$ in Thousands

Sep. 30, 2026

Dec. 31, 2025

Loans, gross

$ 4,854,818

$ 3,304,713

Financial Asset, 30 to 59 Days Past Due [Member]

Loans, gross

15,223

13,909

Financial Asset, 60 to 89 Days Past Due [Member]

Loans, gross