LOAN CREDIT QUALITY AND RELATED ALLOWANCE FOR LOAN LOSSES - Interest Income if Interest Would Have Been Recorded (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loan credit quality and related allowance for loan losses
Interest Income That Would Have Been Recorded Based on Original Term and Rate	$ 398	$ 768	$ 583
Interest Income Recorded on a Cash Basis	145	333	330
Commercial, Financial, and Agricultural
Loan credit quality and related allowance for loan losses
Interest Income That Would Have Been Recorded Based on Original Term and Rate	48	42	7
Interest Income Recorded on a Cash Basis	53	33	3
Residential Real Estate Mortgages
Loan credit quality and related allowance for loan losses
Interest Income That Would Have Been Recorded Based on Original Term and Rate	53	63	41
Interest Income Recorded on a Cash Basis	38	34	20
Commercial Real Estate Mortgage
Loan credit quality and related allowance for loan losses
Interest Income That Would Have Been Recorded Based on Original Term and Rate	281	600	447
Interest Income Recorded on a Cash Basis	54	264	251
Construction Real Estate Mortgage
Loan credit quality and related allowance for loan losses
Interest Income That Would Have Been Recorded Based on Original Term and Rate	16	63	88
Interest Income Recorded on a Cash Basis	$ 0	$ 2	$ 56