Accumulated Other Comprehensive Income (Changes in AOCI) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 936
Net current period other comprehensive income (loss)	997	578	(2,389)
Ending balance	1,933	3,903	936
Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(591)	(1,003)	(1,003)
Other comprehensive income before reclassifications	(76)	52
Amounts reclassified from accumulated other comprehensive income	0	0
Net current period other comprehensive income (loss)	(76)	52
Ending balance	(667)	(951)
Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	1,527	4,328	4,328
Other comprehensive income before reclassifications	1,132	544
Amounts reclassified from accumulated other comprehensive income	(59)	(18)
Net current period other comprehensive income (loss)	1,073	526
Ending balance	$ 2,600	$ 4,854

- 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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