Accumulated Other Comprehensive Loss (Schedule of Changes In Each Component of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Equity [Abstract]
Combined Federal and state income tax rate	37.00%	37.00%
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax [Roll Forward]
Defined Benefit Pension Plans, Beginning Balance	$ (4,759)	$ (5,349)
Defined Benefit Pension Plans, Ending Balance	(4,759)	(5,349)
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Roll Forward]
Unrealized Gains (Losses) on Securities Available-for-Sale, Beginning Balance	927	1,190
Unrealized Gains (Losses) on Securities Available-for-Sale Securities, Other comprehensive income before reclassifications	6,402	611
Unrealized Gains (Losses) on Securities Available-for-Sale, Amounts reclassified from other comprehensive loss	(533)	(1,344)
Unrealized Gain (Losses) on Securities Available-for-Sale Total	5,869	(733)
Unrealized Gains (Losses) on Securities Available-for-Sale, Ending Balance	6,796	457
Accumulated Other Comprehensive Income (Loss), Net of Income Tax [Roll Forward]
Total, Beginning Balance	(3,832)	(4,159)
Total, Other comprehensive income before reclassifications	6,402	611
Total, Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(533)	(1,344)
Total, Accumulated other comprehensive loss	5,869	(733)
Total, Ending Balance	$ 2,037	$ (4,892)