Accumulated Other Comprehensive Income (Loss) (Accumulated Other Comprehensive Income (Loss) By Component) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Comprehensive Income [Line Items]
Balance			$ 2,215
Other comprehensive income before reclassifications, Interest rate swaps			216	226	(123)
Transfer of securities from available-for-sale to held-to-maturity	(3,530)	(3,530)	(3,533)	0	0
Accretion of unrealized losses of securities transferred from available-for-sale to held-to-maturity recognized in other comprehensive income			237	0	0
Reclassification adjustments for (gains) losses reclassified into income, Unrealized (gains) losses on securities			116	(329)	(646)
Net current period other comprehensive (loss) income, Unrealized (gains) losses on securities			(6,311)	(336)	2,590
Net current period other comprehensive (loss) income, Pension and postretirement benefit plans			1,340	(448)	(396)
Balance	(5,720)		(5,720)	2,215
Transferred From Available-For-Sale to Held-To-Maturity [Member]
Comprehensive Income [Line Items]
Net current period other comprehensive (loss) income, Unrealized (gains) losses on securities			(3,300)
Unrealized Gains (Losses) on Securities [Member] | Available-For-Sale [Member]
Comprehensive Income [Line Items]
Balance			6,033
Other comprehensive income before reclassifications, Unrealized (gains) losses on securities			(9,844)
Transfer of securities from available-for-sale to held-to-maturity			3,533
Accretion of unrealized losses of securities transferred from available-for-sale to held-to-maturity recognized in other comprehensive income			0
Reclassification adjustments for (gains) losses reclassified into income, Unrealized (gains) losses on securities			116
Net current period other comprehensive (loss) income, Unrealized (gains) losses on securities			(6,195)
Balance	(162)		(162)
Unrealized Gains (Losses) on Securities [Member] | Transferred From Available-For-Sale to Held-To-Maturity [Member]
Comprehensive Income [Line Items]
Balance			0
Other comprehensive income before reclassifications, Unrealized (gains) losses on securities			0
Transfer of securities from available-for-sale to held-to-maturity			(3,533)
Accretion of unrealized losses of securities transferred from available-for-sale to held-to-maturity recognized in other comprehensive income			237
Reclassification adjustments for (gains) losses reclassified into income, Unrealized (gains) losses on securities			0
Net current period other comprehensive (loss) income, Unrealized (gains) losses on securities			(3,296)
Balance	(3,296)		(3,296)
Pension Plans [Member]
Comprehensive Income [Line Items]
Balance			(3,130)
Other comprehensive income before reclassifications, Pension and postretirement benefit plans			1,110
Transfer of securities from available-for-sale to held-to-maturity			0
Accretion of unrealized losses of securities transferred from available-for-sale to held-to-maturity recognized in other comprehensive income			0
Reclassification adjustments for (gains) losses reclassified into income, Pension and postretirement benefit plans			230
Net current period other comprehensive (loss) income, Pension and postretirement benefit plans			1,340
Balance	(1,790)		(1,790)
Interest Rate Swap [Member]
Comprehensive Income [Line Items]
Balance			(688)
Other comprehensive income before reclassifications, Interest rate swaps			216
Transfer of securities from available-for-sale to held-to-maturity			0
Accretion of unrealized losses of securities transferred from available-for-sale to held-to-maturity recognized in other comprehensive income			0
Reclassification adjustments for (gains) losses reclassified into income, Interest rate swaps			0
Net current period other comprehensive (loss) income, Interest rate swaps			216
Balance	(472)		(472)
Accumulated Other Comprehensive Income (Loss) [Member]
Comprehensive Income [Line Items]
Balance			2,215
Other comprehensive income before reclassifications, Accumulated other comprehensive income (loss)			(8,518)
Transfer of securities from available-for-sale to held-to-maturity			0
Accretion of unrealized losses of securities transferred from available-for-sale to held-to-maturity recognized in other comprehensive income			237
Reclassification adjustments for (gains) losses reclassified into income, Accumulated other comprehensive income (loss)			346
Net current periodic change, Accumulated other comprehensive income (loss)			(7,935)
Balance	$ (5,720)		$ (5,720)