Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts	47,000
Recorded Investment	$ 20,008
Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts	5,000
Recorded Investment	2,039
Construction Real Estate - Vision/SE LLC Commercial Land And Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts	4,000
Recorded Investment	894
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts	9,000
Recorded Investment	10,206
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts	3,000
Recorded Investment	318
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts	9,000
Recorded Investment	1,281
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts	16,000
Recorded Investment	5,179
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts	1,000
Recorded Investment	91
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	12,253
Accruing [Member] | Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	1,289
Accruing [Member] | Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	8,641
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	111
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	2,212
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	7,755	6,200
Nonaccrual [Member] | Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	750
Nonaccrual [Member] | Construction Real Estate - Vision/SE LLC Commercial Land And Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	894
Nonaccrual [Member] | Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	1,565
Nonaccrual [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	318
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	1,170
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	2,967
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	$ 91