Loans and the Allowance for Loan Losses (Details) - Loans receivable on nonaccrual status - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 12,790	$ 5,734
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	1,208	1,460
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	7,487	1,081
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	$ 4,095	$ 3,193