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Troubled Debt Restructurings (Loans By Class Of Financing Receivable Modified As TDRs) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Troubled Debt Restructuring, Subsequent Periods [Line Items]    
Number of Contracts 1 2
Troubled Debt Restructurings Within Previous Twelve Months [Member]
    
Troubled Debt Restructuring, Subsequent Periods [Line Items]    
Number of Contracts 2 2
Recorded Investment 555 555
Residential Single Family [Member]
    
Troubled Debt Restructuring, Subsequent Periods [Line Items]    
Number of Contracts   1
Residential Single Family [Member] | Troubled Debt Restructurings Within Previous Twelve Months [Member]
    
Troubled Debt Restructuring, Subsequent Periods [Line Items]    
Number of Contracts 2 2
Recorded Investment 555 555