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Troubled Debt Restructurings (Details Textual) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 USD ($) Loans | Mar. 31, 2018 USD ($) | Dec. 31, 2018 USD ($)
Financing Receivable Modifications [Line Items] |  |  |
Total troubled debt restructurings | $ 5,300,000 |  | $ 5,500,000
Specific reserves to customers | 270,000 |  | 276,000
Commitments to lend additional amounts to borrowers classified as troubled debt restructurings | 0 |  | 0
Provision for loan losses | 550,000 | $ 775,000 |
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 customers | $ 66,000 |  | $ 72,000
Allowance adjustment charge offs | 6,000 | $ 19,000 |
Provision for loan losses | $ 6,000 | $ 19,000 |
Troubled debt restructurings | Residential real estate loan |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructured loans with subsequent payment defaults | Loans | Loans | 3 |  |
Loans default payment past due period | 30 days |  |
Contractual Interest Rate Reduction |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Reduction of the notes stated interest rate |  | 1.75% |
Contractual Interest Rate Reduction | Minimum |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Reduction of the notes stated interest rate | 2.375% |  |
Contractual Interest Rate Reduction | Maximum |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Reduction of the notes stated interest rate | 2.74% |  |
Extended Maturity |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Maturity period loans | 86 months | 6 months |

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