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Commitments And Contingencies (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Standby Letters Of Credit [Member]
Dec. 31, 2011
Standby Letters Of Credit [Member]
Dec. 31, 2012
Commercial Letters Of Credit [Member]
Dec. 31, 2011
Commercial Letters Of Credit [Member]
Dec. 31, 2012
Home equity - junior liens (including lines of credit) [Member]
Commitments To Extend Credit [Member]
Dec. 31, 2011
Home equity - junior liens (including lines of credit) [Member]
Commitments To Extend Credit [Member]
Dec. 31, 2012
Commercial Real Estate [Member]
Commitments To Extend Credit [Member]
Dec. 31, 2011
Commercial Real Estate [Member]
Commitments To Extend Credit [Member]
Dec. 31, 2012
Other Commitments [Member]
Commitments To Extend Credit [Member]
Dec. 31, 2011
Other Commitments [Member]
Commitments To Extend Credit [Member]
Commitments And Contingencies [Line Items]                      
Contractual obligations   $ 16,743,000 $ 20,110,000 $ 425,000 $ 412,000 $ 156,274,000 $ 143,856,000 $ 33,869,000 $ 29,995,000 $ 171,670,000 $ 185,602,000
Settlement 3,616,000                    
Litigation forgive and release amount $ 3,500,000