Fair Value (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	$ 7,987	$ 5,264
Fair Value Swap [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	226	226
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	7,987	5,264
Mortgage IRLCs	189	70
Fair Value, Measurements, Recurring [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	7,987	5,264
Mortgage IRLCs	189	70
Fair Value, Measurements, Recurring [Member] | Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	495,171	538,064
Fair Value, Measurements, Recurring [Member] | Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	495,171	538,064
Fair Value, Measurements, Recurring [Member] | U.S. Government Sponsored Entities' Asset-Backed Securities [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	767,676	761,153
Fair Value, Measurements, Recurring [Member] | U.S. Government Sponsored Entities' Asset-Backed Securities [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	767,676	761,153
Fair Value, Measurements, Recurring [Member] | Other Equity Securities [Member] | Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	1,891	1,922
Fair Value, Measurements, Recurring [Member] | Other Equity Securities [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	739	776
Fair Value, Measurements, Recurring [Member] | Other Equity Securities [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	2,630	2,698
Fair Value, Measurements, Recurring [Member] | Fair Value Swap [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	226	226
Fair Value, Measurements, Recurring [Member] | Fair Value Swap [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	$ 226	$ 226