Loans and Allowance - Summary of Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) loan	Dec. 31, 2014 USD ($) loan
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Balance	$ 5,960	$ 1,237
Post-Modification Recorded Balance	$ 6,601	$ 1,257
Number of Loans | loan	23	23
Commercial and industrial loans
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Balance	$ 4,111
Post-Modification Recorded Balance	$ 2,115
Number of Loans | loan	7
Construction
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Balance	$ 79
Post-Modification Recorded Balance	$ 80
Number of Loans | loan	1
Commercial and farmland
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Balance	$ 1,281	$ 259
Post-Modification Recorded Balance	$ 3,024	$ 259
Number of Loans | loan	3	1
Residential
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Balance	$ 200	$ 632
Post-Modification Recorded Balance	$ 1,113	$ 622
Number of Loans | loan	10	9
Home equity
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Balance	$ 263	$ 320
Post-Modification Recorded Balance	$ 242	$ 350
Number of Loans | loan	1	11
Individuals' loans for household and other personal expenditures
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Balance	$ 26	$ 26
Post-Modification Recorded Balance	$ 27	$ 26
Number of Loans | loan	1	2