Loans and Allowance for Loan Losses - Summary of Non Accrual Loans (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Financing Receivable Allowance For Credit Losses [Line Items]    
Non-accrual loans, not troubled debt restructured $ 4,131 $ 4,912
Troubled debt restructured loans, non-accrual 1,204 2,503
Total non-accrual loans 5,335 7,415
Real Estate Term    
Financing Receivable Allowance For Credit Losses [Line Items]    
Non-accrual loans, not troubled debt restructured 2,386 2,961
Troubled debt restructured loans, non-accrual 808 1,153
Construction and Land Development    
Financing Receivable Allowance For Credit Losses [Line Items]    
Non-accrual loans, not troubled debt restructured 378 56
Troubled debt restructured loans, non-accrual 396 1,329
Commercial and Industrial Loans    
Financing Receivable Allowance For Credit Losses [Line Items]    
Non-accrual loans, not troubled debt restructured 1,211 1,176
Troubled debt restructured loans, non-accrual   21
Residential and Home Equity    
Financing Receivable Allowance For Credit Losses [Line Items]    
Non-accrual loans, not troubled debt restructured 142 631
Consumer and Other    
Financing Receivable Allowance For Credit Losses [Line Items]    
Non-accrual loans, not troubled debt restructured $ 14 $ 88