Securities (Schedule of Contractual Maturities of Securities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Available for Sale, Amortized Cost
Available for Sale, Amortized Cost, Due in one year or less	$ 181
Available for Sale, Amortized Cost, Due after one year to five years	39,096
Available for Sale, Amortized Cost, Due after five to ten years	68,541
Available for Sale, Amortized Cost, Due after ten years	217,429
Available for Sale, Amortized Cost, Total debt securities	325,247
Available for Sale, Amortized Cost, Marketable equity securities	11,157
Available for Sale, Amortized Cost, Total	336,404	360,317
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	192
Available for Sale, Fair Value, Due after one year to five years	40,229
Available for Sale, Fair Value, Due after five to ten years	68,048
Available for Sale, Fair Value, Due after ten years	219,633
Available for Sale, Fair Value, Net debt securities	328,102
Available for Sale, Fair Value, Marketable equity securities	11,979
Available for sale Securities, Fair Value, Total	340,081	356,862
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	454
Held to Maturity, Amortized Cost, Due after one year to five years	5,569
Held to Maturity, Amortized Cost, Due after five to ten years	26,720
Held to Maturity, Amortized Cost, Due after ten years	341,145
Held to Maturity, Amortized Cost, Net debt securities	373,888	350,652
Held to Maturity, Amortized Cost, Marketable equity securities
Held to Maturity, Amortized Cost, Net	373,888	350,652
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	457
Held to Maturity, Fair Value, Due after one year to five years	5,798
Held to Maturity, Fair Value, Due after five to ten years	27,086
Held to Maturity, Fair Value, Due after ten years	343,603
Held to Maturity, Fair Value, Total	376,944	346,455
Held to Maturity, Fair Value, Marketable equity securities