Income Taxes - Schedule of Difference Between Income Tax Expense and Amount Computed by Statutory Federal Income Tax Rate to Income Before Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Net income before taxes	$ 12,814	$ 11,407
Statutory federal tax rate	34.00%	34.00%
Tax on income at statutory federal tax rate	$ 4,357	$ 3,878
Increase (decrease) resulting from:
Federal income tax benefit of state income taxes	(156)	(141)
Tax exempt income on loans	(82)	(69)
Tax exempt income on investments	(384)	(377)
Tax exempt income from bank-owned life insurance	(144)	(146)
Tax exempt death benefits from bank-owned life insurance	(226)
Nondeductible expenses	66	71
Change in federal income tax rate	878
State income tax	460	399
Other	(250)	(111)
Total income tax expense	$ 4,519	$ 3,504

Effective income tax rate reconciliation increase decrease resulting from abstract.

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Income tax reconciliation tax exempt death benefits from bank owned life insurance amount.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from income taxes.

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