Loans - Non-Accrual and Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	$ 3,837	$ 3,509
Total Non-Accrual	13,495	12,888
Loans Past Due Over 89 Days Still Accruing	1,098	1,427
Commercial and Industrial Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	1,384	1,142
Total Non-Accrual	8,583	7,936
Loans Past Due Over 89 Days Still Accruing	0	1,427
Commercial Real Estate Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	276	49
Total Non-Accrual	1,996	1,950
Loans Past Due Over 89 Days Still Accruing	517	0
Agricultural Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	956	994
Total Non-Accrual	1,312	1,062
Loans Past Due Over 89 Days Still Accruing	581	0
Leases
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	0	0
Total Non-Accrual	0	0
Loans Past Due Over 89 Days Still Accruing	0	0
Home Equity Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	555	262
Total Non-Accrual	665	310
Loans Past Due Over 89 Days Still Accruing	0	0
Consumer Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	6	240
Total Non-Accrual	14	254
Loans Past Due Over 89 Days Still Accruing	0	0
Credit Cards
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	145	146
Total Non-Accrual	145	146
Loans Past Due Over 89 Days Still Accruing	0	0
Residential Mortgage Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Loss	515	676
Total Non-Accrual	780	1,230
Loans Past Due Over 89 Days Still Accruing	$ 0	$ 0