v3.8.0.1
Allowance for Loan Losses - Individual Evaluation of Impaired Loans and Related Allowance (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Financing Receivable Modifications [Line Items]    
Unpaid Principal Balance, With No Allowance Recorded $ 4,104 $ 8,994
Recorded Investment, With No Allowance Recorded 4,104 8,994
Unpaid Principal Balance, With an Allowance Recorded 10,246  
Recorded Investment, With an Allowance Recorded 10,246  
Related Allowance, With an Allowance Recorded 1,413  
Residential Properties    
Financing Receivable Modifications [Line Items]    
Unpaid Principal Balance, With No Allowance Recorded   6,093
Recorded Investment, With No Allowance Recorded   6,093
Commercial Real Estate    
Financing Receivable Modifications [Line Items]    
Unpaid Principal Balance, With No Allowance Recorded 3,603 2,148
Recorded Investment, With No Allowance Recorded 3,603 2,148
Commercial and Industrial Loans    
Financing Receivable Modifications [Line Items]    
Unpaid Principal Balance, With No Allowance Recorded 501 753
Recorded Investment, With No Allowance Recorded 501 $ 753
Unpaid Principal Balance, With an Allowance Recorded 10,246  
Recorded Investment, With an Allowance Recorded 10,246  
Related Allowance, With an Allowance Recorded $ 1,413