LOANS - Class of deferred loans (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	70
Unpaid Principal Balance | $	$ 82,000
Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	42
Unpaid Principal Balance | $	$ 33,100
Interest Deferral [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	28
Unpaid Principal Balance | $	$ 48,900
Commercial, financial and agricultural
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	16
Unpaid Principal Balance | $	$ 7,701
Commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	44
Unpaid Principal Balance | $	$ 69,718
Consumer real estate
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	10
Unpaid Principal Balance | $	$ 4,589