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Loans and Allowance for Loan Losses - Loans Modified as Troubled Debt Restructurings During Period (Details) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) Modification | Dec. 31, 2019 USD ($) Modification
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivables, Modifications during Period, Number | Modification | 7 | 8
Financing Receivables, Modifications during Period, Balance | $ | $ 2,744 | $ 1,720
Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivables, Modifications during Period, Number | Modification | 1 | 4
Financing Receivables, Modifications during Period, Balance | $ | $ 303 | $ 1,579
Residential Properties | Real Estate Loan | 1-4 Family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivables, Modifications during Period, Number | Modification | 0 | 1
Financing Receivables, Modifications during Period, Balance | $ | $ 0 | $ 46
Commercial Real Estate | Real Estate Loan |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivables, Modifications during Period, Number | Modification | 1 | 3
Financing Receivables, Modifications during Period, Balance | $ | $ 303 | $ 1,533
Agricultural Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivables, Modifications during Period, Number | Modification | 2 | 1
Financing Receivables, Modifications during Period, Balance | $ | $ 88 | $ 59
Commercial and Industrial Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivables, Modifications during Period, Number | Modification | 3 | 2
Financing Receivables, Modifications during Period, Balance | $ | $ 2,342 | $ 70
Consumer Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivables, Modifications during Period, Number | Modification | 1 | 1
Financing Receivables, Modifications during Period, Balance | $ | $ 11 | $ 12

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