Allowance for Credit Losses- Amortized cost basis of collateral dependent loans (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 2,523,908	$ 2,514,917
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	5,359	7,216
Collateral Other than Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	6,581	6,601
Commercial | Commercial & Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	581,786	570,638
Commercial | Commercial & Industrial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable		1
Commercial | Commercial & Industrial | Collateral Other than Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	5,963	5,978
Commercial | Farmland
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	126,963	129,934
Commercial | Farmland | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	801	996
Commercial | Non Farm, Non Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	834,132	810,392
Commercial | Non Farm, Non Residential | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	3,816	4,111
Commercial | Agriculture
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	128,271	146,054
Commercial | Agriculture | Collateral Other than Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	618	623
Commercial | All Other Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	537,274	539,333
Commercial | All Other Commercial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	157	1,116
Residential | First Liens
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	448,202	450,232
Residential | First Liens | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	332	694
Residential | Home Equity
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	91,098	89,498
Residential | Junior Liens
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	65,515	64,712
Residential | Junior Liens | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable		27
Residential | Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	315,482	318,566
Residential | Multifamily | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	222	225
Residential | All Other Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	46,225	44,378
Residential | All Other Residential | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	31	46
Consumer | Motor Vehicle
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	643,926	636,572
Consumer | All Other Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 29,824	$ 31,486