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Loans and Allowance for Credit Losses - Recorded Balance of Troubled Debt Restructurings (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | $ 7,707 | $ 9,502
Financing Receivable Modifications Performing Recorded Investment | 4,278 | 4,373
Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 6,122 | 6,773
Financing Receivable Modifications Performing Recorded Investment | 3,709 | 4,313
Construction Loans | Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 492 |
Residential Properties | Real Estate Loan | 1-4 Family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 1,507 | 1,603
Financing Receivable Modifications Performing Recorded Investment | 887 | 1,268
Agricultural Real Estate Loans | Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 250 |
Financing Receivable Modifications Performing Recorded Investment | 250 |
Commercial | Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 3,873 | 5,170
Financing Receivable Modifications Performing Recorded Investment | 2,572 | 3,045
Agricultural Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 384 | 228
Financing Receivable Modifications Performing Recorded Investment | 156 |
Commercial and Industrial Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 1,059 | 2,389
Financing Receivable Modifications Performing Recorded Investment | 335 | 58
Consumer Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 118 | 112
Financing Receivable Modifications Performing Recorded Investment | 54 | $ 2
All Other Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Troubled Debt Restructurings Balance | 24 |
Financing Receivable Modifications Performing Recorded Investment | $ 24 |

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