Accumulated Other Comprehensive Income (Components of Accumulated Other Comprehensive Income and Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Beginning balance	$ (2,602)
Other comprehensive income (loss)	1,602		(662)
Ending balance	(1,000)
Unrealized gains on available for sale securities [Member]
Beginning balance	(2,602)	[1]	2,797	[1]
Other comprehensive loss before reclassification	1,665	[1]	(571)	[1]
Amount reclassified from accumulated other comprehensive income	(63)	[1]	(91)	[1]
Other comprehensive income (loss)	1,602	[1]	(662)	[1]
Ending balance	$ (1,000)	[1]	$ 2,135	[1]

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