v3.7.0.1
Loans - Additional Information (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2017
USD ($)
Loan
Dec. 31, 2016
USD ($)
Loan
Financing Receivable Recorded Investment [Line Items]    
Loans acquired $ 1,500 $ 1,600
90 Days or More Past Due and Still Accruing 5,896 5,928
Nonaccrual Past Due and Still Accruing $ 7,701 $ 8,238
Percentage of Total Loans Due 90 Days or More 0.21% 0.23%
Number of loans classified as troubled debt restructurings | Loan 0 5
Troubled debt restructuring balance   $ 3,100
DCB    
Financing Receivable Recorded Investment [Line Items]    
90 Days or More Past Due and Still Accruing $ 13,600  
Nonaccrual Past Due and Still Accruing $ 3,700  
Percentage of Total Loans Due 90 Days or More 28.00%