Loans And Related Allowances For Loan Losses (Average Of Impaired Loans And Related Interest Income By Loan Portfolio Class) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	$ 54,264	$ 67,270
Interest income recognized on an accrual basis	1,204	1,267
Interest income recognized on a cash basis	94	244
Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	7,237	12,643
Interest income recognized on an accrual basis	34	44
Interest income recognized on a cash basis	0	91
Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	9,385	6,781
Interest income recognized on an accrual basis	318	269
Interest income recognized on a cash basis	49	52
Acquisition and development- 1-4 family residential construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	2,248	2,834
Interest income recognized on an accrual basis	87	94
Interest income recognized on a cash basis	0	0
Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	24,018	25,860
Interest income recognized on an accrual basis	481	547
Interest income recognized on a cash basis	0	81
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	5,747	11,960
Interest income recognized on an accrual basis	150	155
Interest income recognized on a cash basis	0	0
Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	4,755	6,415
Interest income recognized on an accrual basis	117	144
Interest income recognized on a cash basis	38	16
Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	828	724
Interest income recognized on an accrual basis	17	14
Interest income recognized on a cash basis	7	4
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Investment	46	53
Interest income recognized on an accrual basis	0	0
Interest income recognized on a cash basis	$ 0	$ 0