Stock-Based Compensation And Employee Stock Option Plan (Schedule Of Grants And Vesting Of Restricted Stock) (Details) (Restricted Stock [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-Vested Restricted Stock, Granted	227,570	155,925	174,825
Non-Vested Restricted Stock, Vested	(227,570)	(155,925)	(174,825)
Weighted Average Fair Value at Grant Date, Granted	$ 994	$ 750	$ 750
Weighted Average Fair Value at Grant Date, Vested	$ (994)	$ (750)	$ (750)