LOANS AND THE ALLOWANCE FOR CREDIT LOSSES - Nonaccrual Loans by Class (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Nonperforming loans
Total nonaccrual loans	$ 4,212	$ 3,163
Non accrual non-TDR loans	4,212	3,163
Exposure threshold for loans subject to formal review	1,000
Commercial, financial and agricultural
Nonperforming loans
Total nonaccrual loans	155	165
Real estate loans - residential | First mortgage
Nonperforming loans
Total nonaccrual loans	1,343	1,104
Real estate loans - commercial | Owner occupied
Nonperforming loans
Total nonaccrual loans	$ 2,714	1,882
Installment
Nonperforming loans
Total nonaccrual loans		$ 12