Allowance for Credit Losses- Amortized cost basis of collateral dependent loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 2,017,990	$ 2,008,433
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	7,585	8,836
Collateral Other than Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	12,688	13,110
Commercial | Commercial & Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	568,275	649,524
Commercial | Commercial & Industrial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	643	1,454
Commercial | Commercial & Industrial | Collateral Other than Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	11,795	12,056
Commercial | Farmland
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	129,743	130,606
Commercial | Farmland | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	1,622	1,633
Commercial | Non Farm, Non Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	533,088	437,661
Commercial | Non Farm, Non Residential | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	3,563	3,919
Commercial | Agriculture
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	124,996	138,022
Commercial | Agriculture | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable		49
Commercial | Agriculture | Collateral Other than Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	893	1,054
Commercial | All Other Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	460,752	461,713
Commercial | All Other Commercial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	1,003	1,027
Residential | First Liens
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	362,959	358,166
Residential | First Liens | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	32	32
Residential | Home Equity
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	65,463	65,581
Residential | Junior Liens
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	58,386	58,663
Residential | Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	201,136	190,907
Residential | Multifamily | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	373	373
Residential | All Other Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	22,552	22,471
Residential | All Other Residential | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	349	349
Consumer | Motor Vehicle
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	626,233	614,559
Consumer | All Other Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable	$ 31,066	$ 32,199