Earnings Per Share (Schedule of Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Basic Earnings Per Share
Net income	$ 5,238	$ 4,007
Weighted-Average Shares number of common shares, basic	8,621,406	7,810,916
Earnings per share, basic	$ 0.61	$ 0.51
Net income available and assumed conversions	$ 5,238	$ 4,007
Weighted-Average Shares, effect of dilutive securities stock option	124,415	154,977
Weighted-Average Shares income available to common stockholders and assumed conversions, diluted	8,745,821	7,965,893
Earnings per share, diluted	$ 0.60	$ 0.50