Other Comprehensive Income (Schedule Of Changes In Each Component Of Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Loss [Abstract]
Defined Benefit Pension Plans, Beginning Balance	$ (4,995)	$ (4,732)
Defined Benefit Pension Plans, Ending Balance	(4,995)	(4,732)
Unrealized Gains (Losses) on Securities Available-for-Sale, Beginning Balance	3,573	825
Unrealized Gains (Losses) on Securities Available-for-Sale, Other comprehensive income before reclassifications	144	2,151
Unrealized Gains (Losses) on Securities Available-for-Sale, Amounts reclassified from other comprehensive loss	(53)	19
Unrealized Gain (Losses) on Securities Available-for-Sale, Total	91	2,170
Unrealized Gains (Losses) on Securities Available-for-Sale, Ending Balance	3,664	2,995
Total, Beginning Balance	(1,422)	(3,907)
Total, Other comprehensive income before reclassifications	144	2,151
Total, Amounts reclassified from other comprehensive loss	(53)	19
Total, Accumulated other comprehensive loss	91	2,170
Total, Ending Balance	$ (1,331)	$ (1,737)
Combined Federal and state income tax rate	37.00%