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Supplemental Executive Retirement Plan (Details Narrative) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 28, 2017 | Dec. 31, 2017 USD ($) Number | Dec. 31, 2016 USD ($) | 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 |  |
Share-based compensation arrangement by share-based payment award, award vesting period |  | 6 years |  |
Retirement plan monthly instalments | Number |  | 180 |  |
Defined benefit plan, net periodic benefit cost (credit) |  | $ 410 | $ 933 |
Purchased Fixed Annuity for Financing Retirement Benefits [Member] | Supplemental Executive Retirement and Death Benefit Agreements [Member] |  |  |  |
Other investments |  |  |  | $ 11,400
Noninterest income, other |  | 47 | $ 46 |
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 |  |

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- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6812-107765 + Details
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