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v3.19.3.a.u2

Loans (Details Textual) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) Loans | Dec. 31, 2018 USD ($) Loans | Dec. 31, 2017 USD ($)
Financing Receivable Modifications [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total troubled debt restructurings | $ 4,600,000 |  |  |  | $ 5,500,000 |  |  |  | $ 4,600,000 | $ 5,500,000 |
Specific reserves to customers | 61,000 |  |  |  | 276,000 |  |  |  | 61,000 | 276,000 |
Commitments to lend additional amounts to borrowers classified as troubled debt restructurings | 0 |  |  |  | 0 |  |  |  | 0 | 0 |
Allowance adjustment charge offs |  |  |  |  |  |  |  |  | 126,000 | 66,000 | $ 75,000
Increase in the allowance for loan losses as a result of the allowance |  |  |  |  |  |  |  |  | 126,000 | 66,000 | 75,000
Provision for loan losses | 600,000 | $ 550,000 | $ 750,000 | $ 550,000 | 525,000 | $ 950,000 | $ 750,000 | $ 775,000 | 2,450,000 | 3,000,000 | 3,350,000
Maximum commercial loan and commercial real estate relationships | 750,000 |  |  |  |  |  |  |  | 750,000 |  |
Residential real estate loan |  |  |  |  |  |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total troubled debt restructurings | 19,000 |  |  |  | 146,000 |  |  |  | $ 19,000 | $ 146,000 | $ 0
Troubled debt restructured loans with subsequent payment defaults | Loans | Loans |  |  |  |  |  |  |  |  | 1 | 2 |
Loans default payment past due period |  |  |  |  |  |  |  |  | 30 days |  |
Provision for loan losses |  |  |  |  |  |  |  |  |  | $ 0 |
Troubled debt restructurings |  |  |  |  |  |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |  |  |  |  |  |
Specific reserves to customers | $ 61,000 |  |  |  | $ 72,000 |  |  |  | $ 61,000 | $ 72,000 |
Contractual Interest Rate Reduction | Minimum |  |  |  |  |  |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reduction of the notes stated interest rate |  |  |  |  |  |  |  |  | 0.24% |  |
Contractual Interest Rate Reduction | Maximum |  |  |  |  |  |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reduction of the notes stated interest rate |  |  |  |  |  |  |  |  | 3.49% |  |
Extended Maturity | Minimum |  |  |  |  |  |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maturity period loans |  |  |  |  |  |  |  |  | 2 months |  |
Extended Maturity | Maximum |  |  |  |  |  |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maturity period loans |  |  |  |  |  |  |  |  | 132 months |  |

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