Basis Of Presentation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Basis Of Presentation [Abstract]
Weighted average shares outstanding (basic)	4,331	4,294	4,326	4,289
Impact of common stock equivalents	21	4	21	3
Weighted average shares outstanding (diluted)	4,352	4,298	4,347	4,292
Anti-dilutive options excluded from calculation		43		44
Net income	$ 3,342	$ 1,561	$ 6,362	$ 4,288
Basic earnings per share	$ 0.77	$ 0.36	$ 1.47	$ 1.00
Diluted earnings per share	$ 0.77	$ 0.36	$ 1.46	$ 1.00