Earnings Per Share (Schedule of Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Basic Earnings Per Share
Net Income	$ 6,134	$ 5,402	$ 17,123	$ 13,573
Weighted-Average Shares number of common shares, basic	8,516,038	8,587,424	8,579,514	8,327,963
Earnings per share, basic	$ 0.72	$ 0.63	$ 2.00	$ 1.63
Net income available and assumed conversions	$ 6,134	$ 5,402	$ 17,123	$ 13,573
Weighted-Average Shares, effect of dilutive securities stock option	112,992	146,267	117,851	151,945
Weighted-Average Shares income available to common stockholders and assumed conversions, diluted	8,629,030	8,733,691	8,697,365	8,479,908
Earnings per share, diluted	$ 0.71	$ 0.62	$ 1.97	$ 1.60