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Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]    
Financing Receivable, Recorded Investment, Nonaccrual Status $ 21,911 $ 20,736
Commercial Portfolio Segment [Member]    
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]    
Financing Receivable, Recorded Investment, Nonaccrual Status 9,480 6,586
Commercial Real Estate Portfolio Segment [Member]    
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]    
Financing Receivable, Recorded Investment, Nonaccrual Status 9,478 9,112
Construction Loans [Member]    
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]    
Financing Receivable, Recorded Investment, Nonaccrual Status 1,479
Residential Portfolio Segment [Member]    
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]    
Financing Receivable, Recorded Investment, Nonaccrual Status $ 2,953 $ 3,559