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Loans and Allowance for Loan and Lease Losses (Schedule of Accretion of Purchased Impaired Loan) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2017
Accounts Notes Loans And Financing Receivable Gross Allowance And Net [Abstract]    
Accretable yield, beginning balance $ 80 $ 67
Accretable yield amortized to interest income (12) (22)
Reclassification from nonaccretable difference [1]   23
Accretable yield, ending balance $ 68 $ 68
[1] Reclassification from non-accretable difference represents an increase to the estimated cash flows to be collected on the underlying portfolio.