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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Accretable Yield) (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Receivables [Abstract]    
Accretable yield at the beginning of period $ 676 $ 683
Accretion (22) (7)
Reclassification to nonaccretable difference for loans with changing cash flows (22) 0
Changes in accretable yield for non-credit related changes in expected cash flows (163) 0
Outstanding accretable yield $ 469 $ 676