Loans, Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	$ 14,693	$ 12,187
Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	12,386	9,244
Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	1,458	2,242
None [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	849	701
Real Estate Loans [Member] | Mortgages [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	2,891	2,961
Real Estate Loans [Member] | Mortgages [Member] | Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	2,891	2,961
Real Estate Loans [Member] | Mortgages [Member] | Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Real Estate Loans [Member] | Home Equity [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	119	121
Real Estate Loans [Member] | Home Equity [Member] | Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	119	121
Real Estate Loans [Member] | Home Equity [Member] | Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Real Estate Loans [Member] | Commercial [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	2,485	1,135
Real Estate Loans [Member] | Commercial [Member] | Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	2,485	1,135
Real Estate Loans [Member] | Commercial [Member] | Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Real Estate Loans [Member] | Agricultural [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	2,608	2,670
Real Estate Loans [Member] | Agricultural [Member] | Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	2,608	2,670
Real Estate Loans [Member] | Agricultural [Member] | Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Real Estate Loans [Member] | Construction [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	4,283	2,357
Real Estate Loans [Member] | Construction [Member] | Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	4,283	2,357
Real Estate Loans [Member] | Construction [Member] | Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Consumer [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	849	701
Consumer [Member] | Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Consumer [Member] | Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Consumer [Member] | None [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	849	701
Other Commercial Loans [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	1,028	1,750
Other Commercial Loans [Member] | Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Other Commercial Loans [Member] | Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	1,028	1,750
Other Agricultural Loans [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	430	492
Other Agricultural Loans [Member] | Real Estate [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	0	0
Other Agricultural Loans [Member] | Business Assets [Member]
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract]
Financing Receivable, Nonaccrual	$ 430	$ 492