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Supplemental Executive Retirement Plan (Details Narrative) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($) Number	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) Number	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2013 USD ($)
Defined benefit plan, net periodic benefit cost	$ 385	$ 103	$ 486	$ 205
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
Purchased Fixed Annuity for Financing Retirement Benefits [Member] | Supplemental Executive Retirement and Death Benefit Agreements [Member]
Other investments						$ 11,400
Annual fee on annuity contracts			$ 65	28
Annuity contracts accrued income			110	$ 107
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	$ 12,400		$ 12,400		$ 11,600

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The Amount of annuity contracts accrued income.

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- Definition

Age for retirement for calculation of benefit under SERP Agreements.

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- Definition

Number of monthly installments, under the SERP Agreements.

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- Definition

Base salary for benefit under Supplement Executive Retirement and Death Benefit Agreements, time period used to calculate.

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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)
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-Section 45
-Paragraph 4
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- Definition

Amount of net periodic benefit cost (credit) for defined benefit plan.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
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- Definition

Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
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Amount of investments classified as other.

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-Section S99
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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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