Accumulated Other Comprehensive Loss (Schedule of Accumulated Other Comprehensive Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2014	Dec. 31, 2013
Balance	$ (24,213)	$ (21,823)
Other comprehensive income before reclassifications	5,601	(2,338)
Amounts reclassified from accumulated other comprehensive income	(2)	(52)
Balance	(18,614)	(24,213)
Investment securities- with OTTI [Member]
Balance	(7,623)	(10,036)
Other comprehensive income before reclassifications	2,730	2,735
Amounts reclassified from accumulated other comprehensive income	(96)	(322)
Balance	(4,989)	(7,623)
Investment securities- all other [Member]
Balance	(11,292)	(2,966)
Other comprehensive income before reclassifications	2,995	(8,279)
Amounts reclassified from accumulated other comprehensive income	41	(47)
Balance	(8,256)	(11,292)
Cash Flow Hedge (OCI) [Member]
Balance	(274)	(507)
Other comprehensive income before reclassifications	55	233
Amounts reclassified from accumulated other comprehensive income	0	0
Balance	(219)	(274)
Pension Plan [Member]
Balance	(5,088)	(8,262)
Other comprehensive income before reclassifications	(179)	2,871
Amounts reclassified from accumulated other comprehensive income	52	303
Balance	(5,215)	(5,088)
SERP [Member]
Balance	64	(52)
Other comprehensive income before reclassifications	0	102
Amounts reclassified from accumulated other comprehensive income	1	14
Balance	$ 65	$ 64

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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