Investment Securities (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fair Value
Less than 12 months	$ 32,608	$ 108,726
12 months or more	71,301	6,391
Total	103,909	115,117
Unrealized Losses
Less than 12 months	(211)	(3,866)
12 months or more	(1,999)	(304)
Total	(2,210)	(4,170)
Government sponsored enterprises
Fair Value
Less than 12 months	9,405	25,771
12 months or more	19,781	0
Total	29,186	25,771
Unrealized Losses
Less than 12 months	(38)	(767)
12 months or more	(221)	0
Total	(259)	(767)
Asset-backed securities
Fair Value
Less than 12 months	20,915	76,048
12 months or more	48,942	5,941
Total	69,857	81,989
Unrealized Losses
Less than 12 months	(170)	(2,940)
12 months or more	(1,740)	(251)
Total	(1,910)	(3,191)
Obligations of states and political subdivisions
Fair Value
Less than 12 months	2,288	6,907
12 months or more	2,578	450
Total	4,866	7,357
Unrealized Losses
Less than 12 months	(3)	(159)
12 months or more	(38)	(53)
Total	$ (41)	$ (212)