Basic And Diluted Earnings Per Share (Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Basic And Diluted Earnings Per Share [Abstract]
Net income	$ 2,510	$ 2,083	$ 4,887	$ 3,985
Weighted average shares outstanding	7,474,022	7,447,830	7,472,111	7,446,894
Dilutive effect of potential common shares, stock options	65,098	57,213	65,065	57,175
Diluted weighted average common shares outstanding	7,539,120	7,505,043	7,537,176	7,504,069
Basic earnings per share	$ 0.34	$ 0.28	$ 0.65	$ 0.54
Diluted earnings per share	$ 0.33	$ 0.28	$ 0.65	$ 0.53