ALLOWANCE FOR LOAN LOSSES (Details 1) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for Loan Losses, Individually Evaluated for Impairment	$ 307	$ 1,246
Allowance for Loan Losses, Collectively Evaluated for Impairment	4,973	4,950
Allowance for loan losses	5,280	6,196	$ 6,072
Recorded Investment in Loans, Individually Evaluated for Impairment	9,137	12,640
Recorded Investment in Loans, Collectively Evaluated for Impairment	522,832	500,368
Recorded Investment in Loans, Total	531,969	513,008
Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	291	833
Allowance for Loan Losses, Collectively Evaluated for Impairment	3,845	4,268
Allowance for loan losses	4,136	5,101
Recorded Investment in Loans, Individually Evaluated for Impairment	9,007	11,503
Recorded Investment in Loans, Collectively Evaluated for Impairment	444,035	433,586
Recorded Investment in Loans, Total	453,042	445,089
Construction and Land Development \| Real Estate [Member]
Allowance for Loan Losses, Collectively Evaluated for Impairment	171	191
Allowance for loan losses	171	191
Recorded Investment in Loans, Individually Evaluated for Impairment	140	424
Recorded Investment in Loans, Collectively Evaluated for Impairment	29,263	29,339
Recorded Investment in Loans, Total	29,403	29,763
Residential 1-4 Family \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	114	91
Allowance for Loan Losses, Collectively Evaluated for Impairment	2,095	2,309
Allowance for loan losses	2,209	2,400
Recorded Investment in Loans, Individually Evaluated for Impairment	3,474	4,007
Recorded Investment in Loans, Collectively Evaluated for Impairment	245,664	245,152
Recorded Investment in Loans, Total	249,138	249,159
Multifamily \| Real Estate [Member]
Allowance for Loan Losses, Collectively Evaluated for Impairment	91	106
Allowance for loan losses	91	106
Recorded Investment in Loans, Individually Evaluated for Impairment	79	281
Recorded Investment in Loans, Collectively Evaluated for Impairment	13,382	15,200
Recorded Investment in Loans, Total	13,461	15,481
Commercial [Member]
Recorded Investment in Loans, Total	49,945	41,345
Commercial [Member] \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	46	499
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,337	1,490
Allowance for loan losses	1,383	1,989
Recorded Investment in Loans, Individually Evaluated for Impairment	3,198	5,149
Recorded Investment in Loans, Collectively Evaluated for Impairment	136,186	122,539
Recorded Investment in Loans, Total	139,384	127,688
Commercial Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	15	413
Allowance for Loan Losses, Collectively Evaluated for Impairment	365	247
Allowance for loan losses	380	660	163
Recorded Investment in Loans, Individually Evaluated for Impairment	123	1,117
Recorded Investment in Loans, Collectively Evaluated for Impairment	49,822	40,228
Recorded Investment in Loans, Total	49,945	41,345
Agriculture
Allowance for Loan Losses, Collectively Evaluated for Impairment	33	20
Allowance for loan losses	33	20	31
Recorded Investment in Loans, Individually Evaluated for Impairment		12
Recorded Investment in Loans, Collectively Evaluated for Impairment	4,895	3,482
Recorded Investment in Loans, Total	4,895	3,494
Consumer Installment Loans
Allowance for Loan Losses, Individually Evaluated for Impairment	1
Allowance for Loan Losses, Collectively Evaluated for Impairment	150	156
Allowance for loan losses	151	156	123
Recorded Investment in Loans, Individually Evaluated for Impairment	7	8
Recorded Investment in Loans, Collectively Evaluated for Impairment	23,464	22,403
Recorded Investment in Loans, Total	23,471	22,411
Other Loans
Allowance for Loan Losses, Collectively Evaluated for Impairment	3	3
Allowance for loan losses	3	3
Recorded Investment in Loans, Collectively Evaluated for Impairment	616	669
Recorded Investment in Loans, Total	616	669
Unallocated
Allowance for Loan Losses, Collectively Evaluated for Impairment	577	256
Allowance for loan losses	577	256	$ 739
Farmland \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	131	243
Allowance for Loan Losses, Collectively Evaluated for Impairment	151	172
Allowance for loan losses	282	415
Recorded Investment in Loans, Individually Evaluated for Impairment	2,116	1,642
Recorded Investment in Loans, Collectively Evaluated for Impairment	19,540	21,356
Recorded Investment in Loans, Total	$ 21,656	$ 22,998

Financing receivable allowance for credit losses individually evaluated for impairment.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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