Earnings Per Share (Schedule of Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Basic Earnings Per Share
Net Income	$ 5,751	$ 4,165	$ 10,989	$ 8,172
Weighted-Average Shares number of common shares, basic	8,602,257	8,577,017	8,611,779	8,196,083
Earnings per share, basic	$ 0.67	$ 0.49	$ 1.28	$ 1.00
Net income available and assumed conversions	$ 5,751	$ 4,165	$ 10,989	$ 8,172
Weighted-Average Shares, effect of dilutive securities stock option	116,202	154,594	120,308	154,785
Weighted-Average Shares income available to common stockholders and assumed conversions, diluted	8,718,459	8,731,611	8,732,087	8,350,868
Earnings per share, diluted	$ 0.66	$ 0.48	$ 1.26	$ 0.98