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Troubled Debt Restructurings (Details Textual) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 USD ($) Loans | Mar. 31, 2019 USD ($) Loans | Dec. 31, 2019 USD ($)
Financing Receivable Modifications [Line Items] |  |  |
Total troubled debt restructurings | $ 4,700,000 |  | $ 4,600,000
Specific reserves to loans | 61,000 |  | 61,000
Commitments to lend additional amounts to borrowers classified as troubled debt restructurings | $ 0 |  | 0
Commercial farmland loans |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructured loans with subsequent payment defaults | Loans | Loans | 2 |  |
Commercial loans |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Provision for loan losses | $ 0 |  |
Troubled debt restructured loans with subsequent payment defaults | Loans | Loans | 1 |  |
Loans default payment past due period | 30 days |  |
Residential real estate loan |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Provision for loan losses |  | $ 0 |
Troubled debt restructured loans with subsequent payment defaults | Loans | Loans |  | 2 |
Loans default payment past due period |  | 30 days |
Residential real estate, Home equity lines of credit |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructured loans with subsequent payment defaults | Loans | Loans |  | 1 |
Troubled debt restructurings |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Specific reserves to loans | $ 61,000 |  | $ 61,000
Allowance adjustment charge offs | 5,000 | $ 6,000 |
Provision for loan losses | $ 5,000 | $ 6,000 |
Extended Maturity |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Maturity period loans |  | 86 months |
Extended Maturity | Minimum |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Maturity period loans | 168 months |  |
Extended Maturity | Maximum |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Maturity period loans | 180 months |  |
Contractual Interest Rate Reduction | Minimum |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Reduction of the notes stated interest rate |  | 2.38% |
Contractual Interest Rate Reduction | Maximum |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Reduction of the notes stated interest rate |  | 2.74% |

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