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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
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Receivables [Abstract]    
Accretable yield, beginning of period $ 135 $ 414
Accretion recognized in earnings (3) (129)
Reclassification to nonaccretable difference for loans with changing cash flows (3) (244)
Changes in accretable yield for non-credit related changes in expected cash flows (5) 94
Accretable yield, end of period $ 124 $ 135