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Earnings Per Share (Computations of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Numerator, net income	$ 8,198	$ 6,711	$ 5,908
Weighted average shares outstanding	6,238	5,816	5,523
Less: Weighted average unvested restricted shares	(28)	(21)	(14)
Denominator: Basic earnings per share	6,210	5,795	5,510
Weighted average shares outstanding	6,210	5,795	5,523
Add: Dilutive effect of stock options	61	33	14
Denominator: Diluted earnings per share	6,271	5,828	5,537
Basic earnings per common share	$ 1.32	$ 1.16	$ 1.07
Diluted earnings per common share	$ 1.31	$ 1.15	$ 1.07

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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