Loans And Related Allowances For Loan Losses (Allowance For Loan Losses Summarized By Loan Portfolio Segments) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Jun. 30, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]            
Total Allowance For Loan Losses $ 16,349 $ 16,770 $ 19,480 $ 20,135 $ 21,001 $ 22,138
Individually evaluated for impairment 1,767   3,951      
Collectively evaluated for impairment 14,582   15,529      
Commercial Real Estate [Member]
           
Financing Receivable, Allowance for Credit Losses [Line Items]            
Total Allowance For Loan Losses 6,021 5,856 6,218 7,234 6,112 8,658
Individually evaluated for impairment 183   92      
Collectively evaluated for impairment 5,838   6,126      
Acquisition and Development [Member]
           
Financing Receivable, Allowance for Credit Losses [Line Items]            
Total Allowance For Loan Losses 5,635 6,209 7,190 6,524 8,440 6,345
Individually evaluated for impairment 1,584   2,718      
Collectively evaluated for impairment 4,051   4,472      
Commercial and industrial [Member]
           
Financing Receivable, Allowance for Credit Losses [Line Items]            
Total Allowance For Loan Losses 577 860 2,190 2,197 2,235 1,345
Individually evaluated for impairment 0   1,139      
Collectively evaluated for impairment 577   1,051      
Residential Mortgage [Member]
           
Financing Receivable, Allowance for Credit Losses [Line Items]            
Total Allowance For Loan Losses 3,748 3,457 3,430 3,694 3,714 4,211
Individually evaluated for impairment 0   2      
Collectively evaluated for impairment 3,748   3,428      
Consumer [Member]
           
Financing Receivable, Allowance for Credit Losses [Line Items]            
Total Allowance For Loan Losses 368 388 452 486 500 1,579
Individually evaluated for impairment 0   0      
Collectively evaluated for impairment $ 368   $ 452