Loans (Payment Modifications) (Details) - CARES Act $ in Thousands	Mar. 31, 2021 USD ($) loan	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	23
Outstanding Balance | $	$ 40,763
% of Loan Category (Excludes PPP Loans)	1.40%	1.70%
Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	4
Outstanding Balance | $	$ 4,413
% of Loan Category (Excludes PPP Loans)	0.90%	0.80%
Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	15
Outstanding Balance | $	$ 36,137
% of Loan Category (Excludes PPP Loans)	2.40%	3.00%
Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	0
Outstanding Balance | $	$ 0
% of Loan Category (Excludes PPP Loans)	0.00%	0.00%
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	2
Outstanding Balance | $	$ 40
Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	2
Outstanding Balance | $	$ 173
% of Loan Category (Excludes PPP Loans)	0.10%	0.10%