Share-Based Compensation (Summary Of Restricted Stock Activity) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Deferred Compensation Arrangements [Abstract]
Non-vested at January 1	1,250	3,175	5,100
Vested in Period, Other than options	(1,250)	(1,925)		(1,925)
Non-vested at March 31,	0	1,250	3,175	5,100
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		0 years 1 month 4 days 6 hours 12 minutes	0 years 6 months 14 days	1 year 0 months 9 days 11 hours 45 minutes 36 seconds
Non-vested Intrinsic Value, January 1	$ 55,000	$ 143,000	$ 189,000
Non-vested Intrinsic Value, March 31		$ 55,000	$ 143,000	$ 189,000