Note 6 - Loans and Allowance for Credit Losses - Schedule of Loans Past Due (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 3,992,534	$ 2,759,583
Financing Receivable, Excluding Accrued Interest, Nonaccrual	54,433	8,596
Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	3,924,341	2,747,458
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	3,987	2,789
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,320	601
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	8,453	139
Commercial Borrower [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,787,277	1,849,267
Financing Receivable, Excluding Accrued Interest, Nonaccrual	41,757	7,710
Commercial Borrower [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,735,772	1,840,366
Commercial Borrower [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,215	1,052
Commercial Borrower [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	133	0
Commercial Borrower [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	8,400	139
Commercial Borrower [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	666,727	562,180
Financing Receivable, Excluding Accrued Interest, Nonaccrual	3,218	6,595
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	654,073	554,602
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	903	844
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	133	0
Commercial Borrower [Member] | Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	8,400	139
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,996,243	1,210,114
Financing Receivable, Excluding Accrued Interest, Nonaccrual	37,278	1,115
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction, Land, and Development [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	294,677	124,034
Financing Receivable, Excluding Accrued Interest, Nonaccrual	30,044	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	363,123	245,103
Financing Receivable, Excluding Accrued Interest, Nonaccrual	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-Owner Occupied [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	967,025	569,354
Financing Receivable, Excluding Accrued Interest, Nonaccrual	5,217	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	371,418	271,623
Financing Receivable, Excluding Accrued Interest, Nonaccrual	2,017	1,115
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,958,740	1,208,871
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Construction, Land, and Development [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	264,633	124,034
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Multifamily Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	363,123	245,103
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Non-Owner Occupied [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	961,808	569,267
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Owner Occupied Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	369,176	270,467
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	225	128
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Construction, Land, and Development [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Multifamily Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-Owner Occupied [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	87
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	225	41
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Construction, Land, and Development [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Multifamily Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-Owner Occupied [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Owner Occupied Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction, Land, and Development [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Multifamily Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-Owner Occupied [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	124,307	76,973
Financing Receivable, Excluding Accrued Interest, Nonaccrual	1,261	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Land [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	61,299	40,832
Financing Receivable, Excluding Accrued Interest, Nonaccrual	609	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Production Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	63,008	36,141
Financing Receivable, Excluding Accrued Interest, Nonaccrual	652	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	122,959	76,893
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Land [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	60,690	40,832
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Production Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	62,269	36,061
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	87	80
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Land [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Production Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	87	80
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Land [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Production Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Land [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Commercial Borrower [Member] | Agricultural Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Production Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Consumer Borrower [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		910,316
Consumer Borrower [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,161,135	881,013
Financing Receivable, Excluding Accrued Interest, Nonaccrual	12,338	886
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, First Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	921,019	697,900
Financing Receivable, Excluding Accrued Interest, Nonaccrual	2,988	638
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	33,547	28,979
Financing Receivable, Excluding Accrued Interest, Nonaccrual	4,680	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	162,509	118,315
Financing Receivable, Excluding Accrued Interest, Nonaccrual	1,460	178
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Real Estate, Junior Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	44,060	35,819
Financing Receivable, Excluding Accrued Interest, Nonaccrual	3,210	70
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,144,918	878,006
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Real Estate, First Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	915,167	695,807
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Construction Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	28,867	28,979
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Home Equity Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	160,430	117,540
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Real Estate, Junior Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	40,454	35,680
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,669	1,567
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Real Estate, First Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,104	901
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Construction Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Home Equity Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	169	597
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Real Estate, Junior Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	396	69
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,157	554
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Real Estate, First Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	707	554
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Construction Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Home Equity Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	450	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Real Estate, Junior Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	53	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Real Estate, First Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	53	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Home Equity Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Consumer Borrower [Member] | Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Real Estate, Junior Lien [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Consumer Borrower [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,205,257	910,316
Financing Receivable, Excluding Accrued Interest, Nonaccrual	12,676	886
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Consumer, Other [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	44,122	29,303
Financing Receivable, Excluding Accrued Interest, Nonaccrual	338	0
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,188,569	907,092
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Consumer, Other [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	43,651	29,086
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	2,772	1,737
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Consumer, Other [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	103	170
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	1,187	601
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Consumer, Other [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	30	47
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	53	0
Consumer Borrower [Member] | Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer, Other [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 0	$ 0