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

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+ References

No definition available.

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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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- References

No definition available.

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- Definition

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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- References

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- Definition

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 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524

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- Definition

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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- Definition

Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

+ References

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- Definition

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

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- Definition

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

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LOANS - IMPAIRED LOANS AND EFFECT ON INTEREST INCOME (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Impaired Loans
Number of days past due to be considered as nonperforming loans	90 days
Recorded investment
With no valuation reserve	$ 3,242	$ 3,170
With a valuation reserve	3,247	682
Total	6,489	3,852
Unpaid Principal Balance	6,453	6,054
Related Allowance for Loan Losses	672	334
Average investment
Average Balance for the Period			$ 6,254	$ 5,137
Interest Income Recognized During Impairment
Interest Income Recognized for the Period			94	281
Commercial real estate
Recorded investment
With no valuation reserve	1,685	1,511
With a valuation reserve	1,568	516
Total	3,253	2,027
Unpaid Principal Balance	2,512	3,326
Related Allowance for Loan Losses	362	168
Average investment
Average Balance for the Period			2,919	2,784
Interest Income Recognized During Impairment
Interest Income Recognized for the Period			56	141
Commercial, financial, and agricultural
Recorded investment
With a valuation reserve	1,307	166
Total	1,307	166
Unpaid Principal Balance	1,307	326
Related Allowance for Loan Losses	310	166
Average investment
Average Balance for the Period			817	246
Interest Income Recognized During Impairment
Interest Income Recognized for the Period			7	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				3
One to four family residential real estate
Recorded investment
With no valuation reserve	1,510	1,621
Total	1,510	1,621
Unpaid Principal Balance	2,200	2,315
Average investment
Average Balance for the Period			2,257	2,057
Interest Income Recognized During Impairment
Interest Income Recognized for the Period			30	134
Consumer construction
Recorded investment
With no valuation reserve	47	17
Total	47	17
Unpaid Principal Balance	$ 62	66
Average investment
Average Balance for the Period			64	37
Interest Income Recognized During Impairment
Interest Income Recognized for the Period			1
Consumer
Recorded investment
With no valuation reserve		21
Total		21
Unpaid Principal Balance		$ 21
Average investment
Average Balance for the Period			$ 11	13
Interest Income Recognized During Impairment
Interest Income Recognized for the Period				$ 2