Investment Securities (Details 2) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014 security	Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract]
Number of individual securities that were in a continuous unrealized loss position for less than twelve months	28
Number of individual securities that were in a continuous unrealized loss position for greater than twelve months	35
Available for Sale, Amortized Cost
Amortized Cost - Due in one year or less	$ 4,650
Amortized Cost - Due after one year to five years	34,283
Amortized Cost - Due after five years to ten years	100,281
Amortized Cost - Due after ten years	78,877
Amortized Cost - Total	218,091
Available for Sale, Fair Value
Fair Value - Due in one year or less	4,718
Fair Value - Due after one year to five years	34,465
Fair Value - Due after five years to ten years	99,983
Fair Value - Due after ten years	81,854
Fair Value - Total	221,020
Gross proceeds from sales of securities	$ 98,815	$ 69,898