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Income Taxes - Income Tax Expense Differs from the Amount of Income Tax Determined by Applying the U.S. Federal Income Tax Rate to Pretax Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Computed tax expense at statutory federal rate	$ 2,609	$ 3,459
Re-measurement of net deferred tax assets	0	752
Other	12	0
Tax-exempt interest and dividend income	(158)	(241)
Income from bank owned life insurance	(176)	(244)
Income tax expense	$ 2,287	$ 3,726

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Effective Income Tax Rate Reconciliation, Bank Owned Life Insurance Income, Amount

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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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-Publisher FASB
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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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