Loans - Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	$ 653	$ 211
Interest Income Recorded on a Cash Basis	206	79
Commercial, financial, and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	6	4
Interest Income Recorded on a Cash Basis	0	1
Real estate mortgage | Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	151	32
Interest Income Recorded on a Cash Basis	101	14
Real estate mortgage | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	496	169
Interest Income Recorded on a Cash Basis	105	64
Real estate mortgage | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Income That Would Have Been Recorded Based on Original Term and Rate	0	6
Interest Income Recorded on a Cash Basis	$ 0	$ 0