LOANS - IMPAIRED LOANS AND EFFECT ON INTEREST INCOME (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2018	Dec. 31, 2017
Impaired Loans
Number of days past due to be considered as nonperforming loans	90 days
Recorded investment
With no valuation reserve	$ 12,392	$ 3,170
With a valuation reserve	4,143	682
Total	16,535	3,852
Unpaid Principal Balance	16,639	6,054
Related Allowance for Loan Losses	764	334
Average investment
Average Balance for the Period	6,505	5,137
Interest Income Recognized During Impairment
Interest Income Recognized for the Period	197	281
Commercial real estate
Recorded investment
With no valuation reserve	9,192	1,511
With a valuation reserve	2,447	516
Total	11,639	2,027
Unpaid Principal Balance	10,549	3,326
Related Allowance for Loan Losses	500	168
Average investment
Average Balance for the Period	3,269	2,784
Interest Income Recognized During Impairment
Interest Income Recognized for the Period	96	141
Commercial, financial, and agricultural
Recorded investment
With no valuation reserve	173
With a valuation reserve	1,324	166
Total	1,497	166
Unpaid Principal Balance	1,700	326
Related Allowance for Loan Losses	264	166
Average investment
Average Balance for the Period	826	246
Interest Income Recognized During Impairment
Interest Income Recognized for the Period	34	1
Commercial construction
Recorded investment
With a valuation reserve	372
Total	372
Unpaid Principal Balance	372
Average investment
Average Balance for the Period	186
Interest Income Recognized During Impairment
Interest Income Recognized for the Period	11
One to four family residential real estate
Recorded investment
With no valuation reserve	2,897	1,621
Total	2,897	1,621
Unpaid Principal Balance	3,809	2,315
Average investment
Average Balance for the Period	2,141	2,057
Interest Income Recognized During Impairment
Interest Income Recognized for the Period	53	134
Consumer construction
Recorded investment
With no valuation reserve	45	17
Total	45	17
Unpaid Principal Balance	105	66
Average investment
Average Balance for the Period	63	37
Interest Income Recognized During Impairment
Interest Income Recognized for the Period	2	3
Consumer
Recorded investment
With no valuation reserve	85	21
Total	85	21
Unpaid Principal Balance	104	21
Average investment
Average Balance for the Period	20	13
Interest Income Recognized During Impairment
Interest Income Recognized for the Period	$ 1	$ 2

Number of days past due to be considered as nonperforming loans.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses.

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