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Loans and Allowance for Credit Losses - Loans Modified as Troubled Debt Restructurings (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) Modification	Sep. 30, 2021 USD ($) Modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	8	17
Financing Receivables, Modifications during Period, Balance | $	$ 415	$ 2,267
Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	7	5
Financing Receivables, Modifications during Period, Balance | $	$ 380	$ 1,746
Construction and Land Development | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	0	1
Financing Receivables, Modifications during Period, Balance | $	$ 0	$ 492
Residential Properties | Real Estate Loan | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	2	2
Financing Receivables, Modifications during Period, Balance | $	$ 63	$ 323
Agricultural | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	2	1
Financing Receivables, Modifications during Period, Balance | $	$ 120	$ 250
Commercial Real Estate | Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	3	1
Financing Receivables, Modifications during Period, Balance | $	$ 197	$ 681
Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	0	4
Financing Receivables, Modifications during Period, Balance | $	$ 0	$ 54
Agricultural Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	0	1
Financing Receivables, Modifications during Period, Balance | $	$ 0	$ 156
Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	1	6
Financing Receivables, Modifications during Period, Balance | $	$ 35	$ 287
Other Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables, Modifications during Period, Number | Modification	0	1
Financing Receivables, Modifications during Period, Balance | $	$ 0	$ 24

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