Loans and Allowance for Loan Losses - Summary of Information On Impaired Loans (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Financing Receivable Impaired [Line Items]    
Unpaid Principal Balance $ 18,226 $ 26,619
Recorded investment With No Allowance 11,298 16,817
Recorded investment With Allowance 4,996 7,102
Total Recorded Investment 16,294 23,919
Related Allowance 654 1,522
Commercial Real Estate    
Financing Receivable Impaired [Line Items]    
Unpaid Principal Balance 9,813 16,485
Recorded investment With No Allowance 5,769 11,273
Recorded investment With Allowance 3,004 3,171
Total Recorded Investment 8,773 14,444
Related Allowance 256 350
Commercial Real Estate | Real Estate Term    
Financing Receivable Impaired [Line Items]    
Unpaid Principal Balance 5,864 10,430
Recorded investment With No Allowance 2,979 7,266
Recorded investment With Allowance 2,799 2,959
Total Recorded Investment 5,778 10,225
Related Allowance 189 283
Commercial Real Estate | Construction and Land Development    
Financing Receivable Impaired [Line Items]    
Unpaid Principal Balance 3,949 6,055
Recorded investment With No Allowance 2,790 4,007
Recorded investment With Allowance 205 212
Total Recorded Investment 2,995 4,219
Related Allowance 67 67
Commercial and Industrial    
Financing Receivable Impaired [Line Items]    
Unpaid Principal Balance 6,937 7,562
Recorded investment With No Allowance 4,458 3,510
Recorded investment With Allowance 1,587 3,499
Total Recorded Investment 6,045 7,009
Related Allowance 323 1,078
Consumer    
Financing Receivable Impaired [Line Items]    
Unpaid Principal Balance 1,476 2,572
Recorded investment With No Allowance 1,071 2,034
Recorded investment With Allowance 405 432
Total Recorded Investment 1,476 2,466
Related Allowance 75 94
Consumer | Residential and Home Equity    
Financing Receivable Impaired [Line Items]    
Unpaid Principal Balance 1,476 2,514
Recorded investment With No Allowance 1,071 2,019
Recorded investment With Allowance 405 432
Total Recorded Investment 1,476 2,451
Related Allowance $ 75 79
Consumer | Consumer and Other    
Financing Receivable Impaired [Line Items]    
Unpaid Principal Balance   58
Recorded investment With No Allowance   15
Total Recorded Investment   15
Related Allowance   $ 15