Income Taxes (Details) - USD ($)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Current tax expense
Federal	$ 1,962,000	$ 2,503,000
State	428,000	531,000
Deferred tax expense (benefit) related to:
Provision for loan losses	(355,000)	(320,000)
Depreciation	374,000	203,000
Fair value adjustments	1,611,000	356,000
Nonaccrual interest	(26,000)	(26,000)
Foreclosed real estate	55,000	117,000
Core deposit intangible	(123,000)	(117,000)
Other	63,000	115,000
Change in tax rate	2,440,000	0
Total income tax expense	$ 6,428,791	$ 3,362,080

Amount of other deferred income tax expense (benefit) pertaining to core deposit intangible.

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Amount of other deferred income tax expense (benefit) pertaining to depreciation.

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Amount of other deferred income tax expense (benefit) pertaining to foreclosed real estate.

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Deferred Income Tax Expense (Benefit), Reserves and Accruals, Provision for Loan Losses

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Amount of other deferred income tax expense (benefit) pertaining to nonaccrual interest.

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Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Income Tax Expense (Benefit)

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Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of other deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. For example, but not limited to, acquisition-date income tax benefits or expenses recognized from changes in the acquirer's valuation allowance for its previously existing deferred tax assets resulting from a business combination and adjustments to beginning-of-year balance of a valuation allowance because of a change in circumstance causing a change in judgment about the realizability of the related deferred tax asset in future periods.

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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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