LOANS - Schedule of Modified Troubled Debt Restructurings During the Period (Details) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($) contract	Dec. 31, 2016 USD ($) contract
Schedule of Modified Troubled Debt Restructurings During the Period [Line Items]
Financing Receivable, Modifications, Number of Contracts \| contract	6	4
Financing Receivable, Modifications, Pre-Modification Recorded Investment \| $	$ 2,002	$ 5,515
Commercial, financial and agricultural
Schedule of Modified Troubled Debt Restructurings During the Period [Line Items]
Financing Receivable, Modifications, Number of Contracts \| contract	6	2
Financing Receivable, Modifications, Pre-Modification Recorded Investment \| $	$ 2,002	$ 3,943
Real estate – commercial
Schedule of Modified Troubled Debt Restructurings During the Period [Line Items]
Financing Receivable, Modifications, Number of Contracts \| contract	0	2
Financing Receivable, Modifications, Pre-Modification Recorded Investment \| $	$ 0	$ 1,572

[Line Items] for Schedule of Modified Troubled Debt Restructurings During the Period [Table]

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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