Basis Of Presentation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Basis Of Presentation [Abstract]
Weighted average shares outstanding (basic)	4,412	4,359
Impact of common stock equivalents	21	28
Weighted average shares outstanding (diluted)	4,433	4,387
Net income	$ 3,237	$ 3,502
Basic earnings per share	$ 0.73	$ 0.80
Diluted earnings per share	$ 0.73	$ 0.80