Securities (Schedule of Contractual Maturities of Securities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Available for Sale, Amortized Cost
Available for Sale, Amortized Cost, Due in one year or less	$ 118
Available for Sale, Amortized Cost, Due after one year to five years	37,513
Available for Sale, Amortized Cost, Due after five to ten years	92,385
Available for Sale, Amortized Cost, Due after ten years	217,932
Available for Sale, Amortized Cost, Total debt securities	347,948
Available for Sale, Amortized Cost, Marketable equity securities	11,173
Available for Sale, Amortized Cost, Total	359,121	360,317
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	124
Available for Sale, Fair Value, Due after one year to five years	38,373
Available for Sale, Fair Value, Due after five to ten years	91,581
Available for Sale, Fair Value, Due after ten years	219,561
Available for Sale, Fair Value, Net debt securities	349,639
Available for Sale, Fair Value, Marketable equity securities	11,816
Available for sale Securities, Fair Value, Total	361,455	356,862
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	199
Held to Maturity, Amortized Cost, Due after one year to five years	5,492
Held to Maturity, Amortized Cost, Due after five to ten years	32,731
Held to Maturity, Amortized Cost, Due after ten years	333,996
Held to Maturity, Amortized Cost, Net debt securities	372,418	350,652
Held to Maturity, Amortized Cost, Net	372,418	350,652
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	204
Held to Maturity, Fair Value, Due after one year to five years	5,674
Held to Maturity, Fair Value, Due after five to ten years	33,115
Held to Maturity, Fair Value, Due after ten years	334,472
Held to Maturity, Fair Value, Total	$ 373,465	$ 346,455