Allowance for Credit Losses - Recorded Investments in Nonperforming Loans (Details) - Nonperforming Loans - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	$ 1,405	$ 1,157
Non-accrual	11,214	11,554
Nonaccrual With No Allowance For Credit Loss	5,329	2,461
Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	20	114
Non-accrual	1,566	2,137
Nonaccrual With No Allowance For Credit Loss	900	254
Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Non-accrual	1,677	461
Nonaccrual With No Allowance For Credit Loss	1,662
Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Non-accrual	1,293	2,064
Nonaccrual With No Allowance For Credit Loss	1,291	2,052
Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Non-accrual	1,115	186
Nonaccrual With No Allowance For Credit Loss	1,103	155
All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Non-accrual	21	26
First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	1,177	666
Non-accrual	933	1,380
Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	71	180
Non-accrual	70	133
Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	137	197
Non-accrual	200	256
Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Non-accrual	548	1,468
Nonaccrual With No Allowance For Credit Loss	373
All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Non-accrual	436	478
Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Non-accrual	3,092	2,549
All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Non-accrual	$ 263	$ 416