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Supplemental Executive Retirement Plan (Details Narrative) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 28, 2017 | Sep. 30, 2017 USD ($) Number | Sep. 30, 2017 USD ($) Number | Dec. 31, 2013 USD ($)
Share-based compensation arrangement by share-based payment award, award vesting period | 3 years |  |  |
Supplemental Executive Retirement and Death Benefit Agreements [Member] |  |  |  |
Time period for calculating base salary under SERP agreements |  |  | 5 years |
Retirement age | Number |  | 67 | 67 |
Share-based compensation arrangement by share-based payment award, award vesting period |  |  | 6 years |
Retirement plan monthly instalments | Number |  | 180 | 180 |
Defined benefit plan, net periodic benefit cost (credit) |  | $ 103 | $ 308 |
Purchased Fixed Annuity for Financing Retirement Benefits [Member] | Supplemental Executive Retirement and Death Benefit Agreements [Member] |  |  |  |
Other investments |  |  |  | $ 11,400
Noninterest income, other |  |  | 54 |
Purchased Fixed Annuity for Financing Retirement Benefits [Member] | Supplemental Executive Retirement and Death Benefit Agreements [Member] | Other Assets [Member] |  |  |  |
Cash surrender value of life insurance |  | $ 11,600 | $ 11,600 |

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