ALLOWANCE FOR LOAN LOSSES (Details 1) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for Loan Losses, Individually Evaluated for Impairment	$ 854	$ 1,246
Allowance for Loan Losses, Collectively Evaluated for Impairment	4,848	4,950
Allowance for Loan Losses, Total	5,702	6,196	$ 6,072
Recorded Investment in Loans, Individually Evaluated for Impairment	10,772	12,640
Recorded Investment in Loans, Collectively Evaluated for Impairment	505,591	500,368
Recorded Investment in Loans, Total	516,363	513,008
Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	686	833
Allowance for Loan Losses, Collectively Evaluated for Impairment	4,202	4,268
Allowance for Loan Losses, Total	4,888	5,101
Recorded Investment in Loans, Individually Evaluated for Impairment	10,287	11,503
Recorded Investment in Loans, Collectively Evaluated for Impairment	434,755	433,586
Recorded Investment in Loans, Total	445,042	445,089
Commercial
Recorded Investment in Loans, Total	44,760	41,345
Commercial \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	365	499
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,476	1,490
Allowance for Loan Losses, Total	1,841	1,989
Recorded Investment in Loans, Individually Evaluated for Impairment	4,875	5,149
Recorded Investment in Loans, Collectively Evaluated for Impairment	127,897	122,539
Recorded Investment in Loans, Total	132,772	127,688
Construction and Land Development \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment
Allowance for Loan Losses, Collectively Evaluated for Impairment	154	191
Allowance for Loan Losses, Total	154	191
Recorded Investment in Loans, Individually Evaluated for Impairment	165	424
Recorded Investment in Loans, Collectively Evaluated for Impairment	23,193	29,339
Recorded Investment in Loans, Total	23,358	29,763
Residential 1-4 Family \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	89	91
Allowance for Loan Losses, Collectively Evaluated for Impairment	2,277	2,309
Allowance for Loan Losses, Total	2,366	2,400
Recorded Investment in Loans, Individually Evaluated for Impairment	3,502	4,007
Recorded Investment in Loans, Collectively Evaluated for Impairment	246,464	245,152
Recorded Investment in Loans, Total	249,966	249,159
Multifamily \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment
Allowance for Loan Losses, Collectively Evaluated for Impairment	104	106
Allowance for Loan Losses, Total	104	106
Recorded Investment in Loans, Individually Evaluated for Impairment	212	281
Recorded Investment in Loans, Collectively Evaluated for Impairment	13,931	15,200
Recorded Investment in Loans, Total	14,143	15,481
Farmland \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	232	243
Allowance for Loan Losses, Collectively Evaluated for Impairment	191	172
Allowance for Loan Losses, Total	423	415
Recorded Investment in Loans, Individually Evaluated for Impairment	1,533	1,642
Recorded Investment in Loans, Collectively Evaluated for Impairment	23,270	21,356
Recorded Investment in Loans, Total	24,803	22,998
Commercial Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	147	413
Allowance for Loan Losses, Collectively Evaluated for Impairment	432	247
Allowance for Loan Losses, Total	579	660	163
Recorded Investment in Loans, Individually Evaluated for Impairment	474	1,117
Recorded Investment in Loans, Collectively Evaluated for Impairment	44,286	40,228
Recorded Investment in Loans, Total	44,760	41,345
Agriculture
Allowance for Loan Losses, Individually Evaluated for Impairment
Allowance for Loan Losses, Collectively Evaluated for Impairment	26	20
Allowance for Loan Losses, Total	26	20	31
Recorded Investment in Loans, Individually Evaluated for Impairment	3	12
Recorded Investment in Loans, Collectively Evaluated for Impairment	3,954	3,482
Recorded Investment in Loans, Total	3,957	3,494
Consumer Installment Loans
Allowance for Loan Losses, Individually Evaluated for Impairment	2
Allowance for Loan Losses, Collectively Evaluated for Impairment	151	156
Allowance for Loan Losses, Total	153	156	123
Recorded Investment in Loans, Individually Evaluated for Impairment	8	8
Recorded Investment in Loans, Collectively Evaluated for Impairment	21,944	22,403
Recorded Investment in Loans, Total	21,952	22,411
Other Loans
Allowance for Loan Losses, Individually Evaluated for Impairment	19
Allowance for Loan Losses, Collectively Evaluated for Impairment	1	3
Allowance for Loan Losses, Total	20	3
Recorded Investment in Loans, Individually Evaluated for Impairment
Recorded Investment in Loans, Collectively Evaluated for Impairment	652	669
Recorded Investment in Loans, Total	652	669
Unallocated
Allowance for Loan Losses, Individually Evaluated for Impairment
Allowance for Loan Losses, Collectively Evaluated for Impairment	36	256
Allowance for Loan Losses, Total	36	256	$ 739
Recorded Investment in Loans, Individually Evaluated for Impairment
Recorded Investment in Loans, Collectively Evaluated for Impairment
Recorded Investment in Loans, Total

Financing receivable allowance for credit losses individually 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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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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