Earnings Per Share (Schedule of Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Basic Earnings Per Share
Net income	$ 3,206	$ 2,365
Weighted-Average Shares number of common shares, basic	7,332,455	7,466,409
Earnings per share, basic	$ 0.44	$ 0.32
Diluted Earnings Per Share
Income available to common stockholders and assumed conversions	$ 3,206	$ 2,365
Weighted-Average Shares, effect of dilutive securities stock option	148,026	149,471
Weighted-Average Shares income available to common stockholders and assumed conversions, diluted	7,480,481	7,615,880
Earnings per share, diluted	$ 0.43	$ 0.31

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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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