Accumulated Other Comprehensive Income (Components Of Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income [Abstract]
Net unrealized losses arising during the period, Pre-tax Amount	$ (2,942)	$ (1,837)
Reclassification adjustment for gains included in income, Pre-tax Amount	(892)	(331)
Reclassification adjustment for impairment charges included in income, Pre-tax Amount		91
Net unealized losses on investment securities, Pre-tax Amount	(3,834)	(2,077)
Amortization of prior service benefit, Pre-tax Amount	(12)	(12)
Amortization of actuarial losses, Pre-tax Amount	341	347
Pension and post-retirement obligations, net, Pre-tax Amount	329	335
Other comprehensive loss, Pre-tax Amount	(3,505)	(1,742)
Net unrealized losses arising during the period, Tax Effect	(1,166)	(728)
Reclassification adjustment for gains included in income, Tax Effect	(353)	(131)
Reclassification adjustment for impairment charges included in income, Tax Effect		36
Net unrealized losses on investment securities, Tax Effect	(1,519)	(823)
Amortization of prior service benefit, Tax Effect	(5)	(5)
Amortization of actuarial losses, Tax Effect	135	138
Pension and post-retirement obligations, net, Tax Effect	130	133
Other comprehensive loss, Tax Effect	(1,389)	(690)
Net unrealized losses arising during the period, Net-of-tax Amount	(1,776)	(1,109)
Reclassification adjustment for gains included in income, Net-of-tax Amount	(539)	(200)
Reclassification adjustment for impairment charges included in income, Net-of-tax Amount		55
Net unrealized losses on investment securities, Net-of-tax Amount	(2,315)	(1,254)
Amortization of prior service benefit, Net-of-tax Amount	(7)	(7)
Amortization of actuarial losses, Net-of-tax Amount	206	209
Pension and post-retirement obligations, net, Net-of-tax Amount	199	202
Other comprehensive loss, Net-of-tax Amount	$ (2,116)	$ (1,052)