Stock Option Plans (Summary Of Information Regarding Stock Option Plans) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Stock Option Plans [Abstract]
Options outstanding, beginning of year, Number of Shares	111,034	116,075
Options expired, Number of Shares	(9,089)
Options forfeited, Number of Shares	(46,194)	(5,041)
Options outstanding, end of year, Number of Shares	55,751	111,034
Options exercisable, end of year, Number of Shares	55,751
Options outstanding, beginning of year, Weighted Average Exercise Price per Share,	$ 12.25	$ 12.33
Options expired, Weighted Average Exercise Price per Share	$ 9.12
Options forfeited, Weighted Average Exercise Price per Share	$ 12.60	$ 13.94
Options outstanding, end of year, Weighted Average Exercise Price per Share	$ 12.48	$ 12.25
Options exercisable, end of year, Weighted Average Exercise Price per Share	$ 12.48
Options outstanding, end of year, Weighted Average Contractual Term	1 year 2 months 27 days
Options exercisable, end of year, Weighted Average Contractual Term	1 year 2 months 27 days