Loans and Allowance for Credit Losses - Recorded Balance of Troubled Debt Restructurings (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	$ 5,792,000	$ 9,502,000
Financing Receivable Modifications Performing Recorded Investment	3,931,000	4,373,000
Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	4,953,000	6,773,000
Financing Receivable Modifications Performing Recorded Investment	3,679,000	4,313,000
Agricultural Real Estate Loans | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	245,000	0
Financing Receivable Modifications Performing Recorded Investment	245,000	0
Residential Properties | Real Estate Loan | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	1,353,000	1,603,000
Financing Receivable Modifications Performing Recorded Investment	882,000	1,268,000
Commercial | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	3,355,000	5,170,000
Financing Receivable Modifications Performing Recorded Investment	2,552,000	3,045,000
Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	228,000	228,000
Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	479,000	2,389,000
Financing Receivable Modifications Performing Recorded Investment	179,000	58,000
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	109,000	112,000
Financing Receivable Modifications Performing Recorded Investment	50,000	2,000
All Other Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings Balance	23,000	0
Financing Receivable Modifications Performing Recorded Investment	$ 23,000	$ 0