Investment Securities (Amortized Cost and Fair Value of Available-for-Sale Securities by Contractual Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Security obligations due, amortized cost, One to five years	$ 9,598
Security obligations due, amortized cost, Five to ten years	10,778
Security obligations due, amortized cost, After ten years	31,037
Total security obligations due, amortized cost	51,413
Available for sale, amortized cost	263,200	269,321
Security obligations due, Fair value, One to five years	9,634
Security obligations due, Fair value, Five to ten years	10,864
Security obligations due, Fair value, After ten years	30,199
Total Security obligations due, Fair value	50,697
Investment securities available for sale	264,056	264,348
Mortgage-Backed Securities, Government Sponsored Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, amortized cost	113,082	104,006
Investment securities available for sale	114,753	103,517
Collateralized Mortgage Obligations, Government Sponsored Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, amortized cost	98,705	108,305
Investment securities available for sale	$ 98,606	$ 107,578