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Loans and Allowance for Credit Losses - Recorded Balance of Troubled Debt Restructurings (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2020
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Troubled Debt Restructurings Balance | $ 8,210 | $ 9,502 |
Financing Receivable Modifications Performing Recorded Investment | 3,560 | 4,373 | $ 2,600
Real Estate Loan |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Troubled Debt Restructurings Balance | 5,537 | 6,773 |
Financing Receivable Modifications Performing Recorded Investment | 3,484 | 4,313 |
Residential Properties | Real Estate Loan | 1-4 Family |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Troubled Debt Restructurings Balance | 1,634 | 1,603 |
Financing Receivable Modifications Performing Recorded Investment | 904 | 1,268 |
Commercial | Real Estate Loan |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Troubled Debt Restructurings Balance | 3,903 | 5,170 |
Financing Receivable Modifications Performing Recorded Investment | 2,580 | 3,045 |
Agricultural Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Troubled Debt Restructurings Balance | 228 | 228 |
Commercial and Industrial Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Troubled Debt Restructurings Balance | 2,351 | 2,389 |
Financing Receivable Modifications Performing Recorded Investment | 52 | 58 |
Consumer Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Troubled Debt Restructurings Balance | 94 | 112 |
Financing Receivable Modifications Performing Recorded Investment | $ 24 | $ 2 |

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