Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 766	$ 3,813	$ 5	[1]	$ 4,184
Other comprehensive income (loss) net of income tax effect before reclassifications	1,258	(4,587)	2,713		(4,956)
Amounts reclassified from accumulated comprehensive income:
Realized gain on sale of securities	(3)	(272)	(1,131)		(276)
Impairment expense	0	0	0		0
Reclassified amounts before tax	(3)	(272)	(1,131)		(276)
Tax expense	1	104	435		106
Total reclassifications net of tax	(2)	(168)	(696)		(170)
Net current period other comprehensive income (loss)	1,256	(4,755)	2,017		(5,126)
Ending balance	$ 2,022	$ (942)	$ 2,022		$ (942)

[1] Derived from audited consolidated financial statements