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Guarantees (Narrative) (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Guarantee Obligations [Line Items]      
Representation and warranty arrangements GNMA $ 19,000 $ 39,000  
Loss On GNMA Repurchased Loan Not Subject To Credit Recourse 501,000 832,000  
Funds Advanced To Investors Under Servicing Agreements 333,000   $ 301,000
Serviced mortgage loans for third parties 690,000,000    
Liability for estimated credit losses FNMA 181,000   439,000
Loan with recourse [Member]      
Guarantee Obligations [Line Items]      
Continuing Involvement With Transferred Financial Assets Principal Amount Outstanding 22,000,000   $ 22,400,000
Repurchased FNMA 209,000    
Representation and warranty arrangements GNMA $ 1,500,000 $ 9,000,000