Loans (Non-accrual and Loans Past Due over 89 Days Still Accruing) (Details) - USD ($) $ in Thousands	Dec. 31, 2022		Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Losses	$ 3,509	[1]	$ 3,843	[2]
Non-Accrual	12,888		14,602
Loans Past Due Over 89 Days Still Accruing	1,427		156
Commercial and Industrial Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Losses	1,142	[1]	1,989	[2]
Non-Accrual	7,936		10,530
Loans Past Due Over 89 Days Still Accruing	1,427		0
Commercial Real Estate Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Losses	49	[1]	145	[2]
Non-Accrual	1,950		2,243
Loans Past Due Over 89 Days Still Accruing	0		156
Agricultural Loans
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Losses	994	[1]	1,041	[2]
Non-Accrual	1,062		1,136
Loans Past Due Over 89 Days Still Accruing	0		0
Leases
Financing Receivable, Past Due [Line Items]
Non-Accrual With No Allowance For Credit Losses	0	[1]	0	[2]
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 Losses	262	[1]	1	[2]
Non-Accrual	310		24
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 Losses	240	[1]	16	[2]
Non-Accrual	254		18
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 Losses	146	[1]	64	[2]
Non-Accrual	146		64
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 Losses	676	[1]	587	[2]
Non-Accrual	1,230		587
Loans Past Due Over 89 Days Still Accruing	$ 0		$ 0

[1] Includes non-accrual loans with no allowance for credit loss and are also included in Non-Accrual loans totaling $12,888.

[2] Includes non-accrual loans with no allowance for credit loss and are also included in Non-Accrual loans totaling $14,602