v3.8.0.1
Allowance for Loan Losses - Individual Evaluation of Impaired Loans and Related Allowance (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Financing Receivable Modifications [Line Items]    
Unpaid Principal Balance, With No Allowance Recorded $ 4,232 $ 4,287
Recorded Investment, With No Allowance Recorded 4,232 4,287
Unpaid Principal Balance, With an Allowance Recorded 9,092 9,149
Recorded Investment, With an Allowance Recorded 9,092 9,149
Related Allowance, With an Allowance Recorded 1,931 909
Commercial Real Estate    
Financing Receivable Modifications [Line Items]    
Unpaid Principal Balance, With No Allowance Recorded 3,982 4,037
Recorded Investment, With No Allowance Recorded 3,982 4,037
Commercial and Industrial Loans    
Financing Receivable Modifications [Line Items]    
Unpaid Principal Balance, With No Allowance Recorded 250 250
Recorded Investment, With No Allowance Recorded 250 250
Unpaid Principal Balance, With an Allowance Recorded 9,092 9,149
Recorded Investment, With an Allowance Recorded 9,092 9,149
Related Allowance, With an Allowance Recorded $ 1,931 $ 909