Summary Of Significant Accounting Policies (Schedule Of Earnings Per Share Basic And Diluted) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Summary Of Significant Accounting Policies [Abstract]
Weighted average shares outstanding (basic)									4,190	4,135	4,072
Impact of common stock equivalents									6	4	2
Weighted average shares outstanding (diluted)									4,196	4,139	4,074
Anti-dilutive options excluded from calculation									35	56	87
Net income	$ 1,847	$ 2,410	$ 2,319	$ 1,826	$ 1,141	$ 2,185	$ 1,355	$ 1,551	$ 8,402	$ 6,232	$ 5,365
Basic earnings per share	$ 0.44	$ 0.57	$ 0.55	$ 0.44	$ 0.27	$ 0.53	$ 0.33	$ 0.38	$ 2.01	$ 1.51	$ 1.32
Diluted earnings per share	$ 0.44	$ 0.57	$ 0.55	$ 0.44	$ 0.27	$ 0.53	$ 0.33	$ 0.38	$ 2.00	$ 1.51	$ 1.32