Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net income available to common stockholders, Income	$ 2,613	$ 2,441
Income available to common stockholders after assumed conversions, Income	$ 2,613	$ 2,441
Net income available to common stockholders, Shares	4,290,971	4,246,593
Effect of potential dilutive common stock equivalents– stock options and restricted shares, Shares	18,000	27,000
Income available to common stockholders after assumed conversions, Shares	4,308,847	4,274,209
Net Income available to common stockholders, Amount	$ 0.61	$ 0.57
Income available to common stockholders after assumed conversions, Amount	$ 0.61	$ 0.57