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Income Taxes (Schedule of Income Tax Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Statutory federal corporate tax amount	$ 3,880	$ 3,034	$ 3,172
Tax-exempt interest (income)	(417)	(387)	(404)
Officer insurance (income) loss	(92)	15	11
Net tax credits	(165)	(126)	(105)
Corporate tax rate change	397
Other, net	23	17	(241)
Total income tax expense	$ 3,626	$ 2,553	$ 2,433
Effective income tax rate	31.77%	28.62%	26.08%

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

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