Stock Option Plans (Summary Of Stock Options Outstanding By Exercise Price) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number Outstanding	32,749
Remaining Contractual Life	8 months 12 days
Number Exercisable	32,749
Exercise Price $12.63 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price	$ 12.63
Number Outstanding	6,708
Remaining Contractual Life	1 year 9 months 18 days
Number Exercisable	6,708
Exercise Price $13.39 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price	$ 13.39
Number Outstanding	6,361
Remaining Contractual Life	1 year 1 month 6 days
Number Exercisable	6,361
Exercise Price $14.67 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price	$ 14.67
Number Outstanding	14,090
Remaining Contractual Life	0 years
Number Exercisable	14,090
Exercise Price $16.45 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price	$ 16.45
Number Outstanding	5,590
Remaining Contractual Life	9 months 18 days
Number Exercisable	5,590