LOANS - Detail of Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) loan	Jun. 30, 2019 USD ($) loan	Jun. 30, 2020 USD ($) loan	Jun. 30, 2019 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	2	1	5	1
Outstanding Recorded Investment Pre-Modification	$ 230	$ 480	$ 980	$ 480
Outstanding Recorded Investment Post-Modification	$ 230	$ 371	$ 974	$ 371
Commercial financial and agriculture
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	1	1	2	1
Outstanding Recorded Investment Pre-Modification	$ 35	$ 480	$ 47	$ 480
Outstanding Recorded Investment Post-Modification	$ 35	$ 371	$ 46	$ 371
Commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	1		3
Outstanding Recorded Investment Pre-Modification	$ 195		$ 933
Outstanding Recorded Investment Post-Modification	$ 195		$ 928