Comprehensive Income Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Schedule of Comprehensive Income [Line Items]
Other comprehensive income, before reclassifications, net of tax	$ 241	[1]	$ 220	[1]
Reclassification from Accumulated Other Comprehensive Income, net of tax	57	[1]	(82)	[1]
Other Comprehensive Income (Loss), before Tax	493		231
Other Comprehensive Income (Loss), Tax	(195)		(93)
Other Comprehensive (Loss) Income	298	[1]	138	[1]
Unrealized Gains and Losses on Available for Sale Securities [Member]
Schedule of Comprehensive Income [Line Items]
Other Comprehensive Income Loss Before Reclassifications Before Tax	399		367
Other Comprehensive Income Loss Before Reclassifications Tax (Expense) Benefit	(158)		(147)
Other comprehensive income, before reclassifications, net of tax	241	[1]	220	[1]
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	0		(527)
Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit	0		209
Reclassification from Accumulated Other Comprehensive Income, net of tax	0	[1]	(318)	[1]
Other Comprehensive (Loss) Income	241	[1]	(98)	[1]
Amortization of Net Retirement Plan Actuarial Loss [Member]
Schedule of Comprehensive Income [Line Items]
Other comprehensive income, before reclassifications, net of tax	0	[1]	0	[1]
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	116		391
Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit	(46)		(155)
Reclassification from Accumulated Other Comprehensive Income, net of tax	70	[1]	236	[1]
Other Comprehensive (Loss) Income	70	[1]	236	[1]
Accretion of Net Retirement Plan Prior Service Credit [Member]
Schedule of Comprehensive Income [Line Items]
Other comprehensive income, before reclassifications, net of tax	0	[1]	0	[1]
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	(22)		0
Reclassification From Accumulated Other Comprehensive Income Current Period Tax (Expense) Benefit	9		0
Reclassification from Accumulated Other Comprehensive Income, net of tax	(13)	[1]	0	[1]
Other Comprehensive (Loss) Income	$ (13)	[1]	$ 0	[1]

[1] (1) All amounts are net of tax. Amounts in parentheses indicate debits.