Investment Securities (Amortized Cost and Fair Value of Available-for-Sale Securities by Contractual Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Security obligations due, amortized cost, One to five years	$ 9,722
Security obligations due, amortized cost, Five to ten years	10,614
Security obligations due, amortized cost, After ten years	32,585
Total security obligations due, amortized cost	52,921
Available for sale, amortized cost	270,914	269,321
Security obligations due, Fair value, One to five years	9,729
Security obligations due, Fair value, Five to ten years	10,537
Security obligations due, Fair value, After ten years	30,792
Total Security obligations due, Fair value	51,058
Investment securities available for sale	269,106	264,348
Mortgage-Backed Securities, Government Sponsored Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, amortized cost	110,919	104,006
Investment securities available for sale	111,343	103,517
Collateralized Mortgage Obligations, Government Sponsored Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, amortized cost	107,074	108,305
Investment securities available for sale	$ 106,705	$ 107,578