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Troubled Debt Restructurings (Narrative) (Details)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
contract
Jun. 30, 2015
USD ($)
contract
Jun. 30, 2014
contract
Dec. 31, 2014
USD ($)
contract
Financing Receivable, Modifications [Line Items]        
Number of troubled debt restructured loans   26   25
Loan is considered payment default   30 days    
Financing Receivable, Modifications, Nonaccrual, Number of Contracts 4 4   8
Financing Receivable, Modifications, Nonaccrual, Recorded Investment | $ $ 919 $ 919   $ 1,400
Troubled Debt Restructuring Modifications Number Of Contracts 1 1 0  
Total troubled debt restructured loans | $ $ 8,100 $ 8,100   $ 7,800
Residential Single Family [Member]        
Financing Receivable, Modifications [Line Items]        
Troubled Debt Restructuring Modifications Number Of Contracts 1 1    
Troubled Debt Restructuring Modifications Amortization Period Number of Contracts   1