ALLOWANCE FOR LOAN LOSSES (Details 1) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for Loan Losses, Individually Evaluated for Impairment	$ 1,132	$ 552
Allowance for Loan Losses, Collectively Evaluated for Impairment	4,954	5,520
Allowance for Loan Losses, Total	6,086	6,072	$ 7,493
Recorded Investment in Loans, Individually Evaluated for Impairment	13,625	14,401
Recorded Investment in Loans, Collectively Evaluated for Impairment	487,765	454,228
Recorded Investment in Loans, Total	501,390	468,629
Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	951	526
Allowance for Loan Losses, Collectively Evaluated for Impairment	3,865	4,490
Allowance for Loan Losses, Total	4,816	5,016
Recorded Investment in Loans, Individually Evaluated for Impairment	13,103	14,275
Recorded Investment in Loans, Collectively Evaluated for Impairment	424,966	402,041
Recorded Investment in Loans, Total	438,069	416,316
Commercial
Recorded Investment in Loans, Total		26,955
Commercial \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	339	65
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,240	1,560
Allowance for Loan Losses, Total	1,579	1,625
Recorded Investment in Loans, Individually Evaluated for Impairment	4,819	4,827
Recorded Investment in Loans, Collectively Evaluated for Impairment	110,061	98,504
Recorded Investment in Loans, Total	114,880	103,331
Construction and Land Development \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	69	106
Allowance for Loan Losses, Collectively Evaluated for Impairment	224	240
Allowance for Loan Losses, Total	293	346
Recorded Investment in Loans, Individually Evaluated for Impairment	202	245
Recorded Investment in Loans, Collectively Evaluated for Impairment	30,676	25,510
Recorded Investment in Loans, Total	30,878	25,755
Residential 1-4 Family \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	104	56
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,990	2,320
Allowance for Loan Losses, Total	2,094	2,376
Recorded Investment in Loans, Individually Evaluated for Impairment	4,377	4,416
Recorded Investment in Loans, Collectively Evaluated for Impairment	249,857	245,284
Recorded Investment in Loans, Total	254,234	249,700
Multifamily \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	194
Allowance for Loan Losses, Collectively Evaluated for Impairment	228	241
Allowance for Loan Losses, Total	422	241
Recorded Investment in Loans, Individually Evaluated for Impairment	1,595	301
Recorded Investment in Loans, Collectively Evaluated for Impairment	13,195	12,281
Recorded Investment in Loans, Total	14,790	12,582
Farmland \| Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	245	299
Allowance for Loan Losses, Collectively Evaluated for Impairment	183	129
Allowance for Loan Losses, Total	428	428
Recorded Investment in Loans, Individually Evaluated for Impairment	2,110	4,486
Recorded Investment in Loans, Collectively Evaluated for Impairment	21,177	20,462
Recorded Investment in Loans, Total	23,287	24,948
Commercial Real Estate [Member]
Allowance for Loan Losses, Individually Evaluated for Impairment	181	18
Allowance for Loan Losses, Collectively Evaluated for Impairment	245	145
Allowance for Loan Losses, Total	426	163	266
Recorded Investment in Loans, Individually Evaluated for Impairment	496	67
Recorded Investment in Loans, Collectively Evaluated for Impairment	35,886	26,888
Recorded Investment in Loans, Total	36,382	26,955
Agriculture
Allowance for Loan Losses, Individually Evaluated for Impairment		5
Allowance for Loan Losses, Collectively Evaluated for Impairment	25	26
Allowance for Loan Losses, Total	25	31	124
Recorded Investment in Loans, Individually Evaluated for Impairment	18	24
Recorded Investment in Loans, Collectively Evaluated for Impairment	3,715	3,140
Recorded Investment in Loans, Total	3,733	3,164
Consumer Installment Loans
Allowance for Loan Losses, Individually Evaluated for Impairment		3
Allowance for Loan Losses, Collectively Evaluated for Impairment	166	120
Allowance for Loan Losses, Total	166	123	128
Recorded Investment in Loans, Individually Evaluated for Impairment	8	35
Recorded Investment in Loans, Collectively Evaluated for Impairment	22,511	22,153
Recorded Investment in Loans, Total	22,519	22,188
Other Loans
Allowance for Loan Losses, Individually Evaluated for Impairment
Allowance for Loan Losses, Collectively Evaluated for Impairment	4
Allowance for Loan Losses, Total	4		1
Recorded Investment in Loans, Individually Evaluated for Impairment
Recorded Investment in Loans, Collectively Evaluated for Impairment	687	6
Recorded Investment in Loans, Total	687	6
Unallocated
Allowance for Loan Losses, Individually Evaluated for Impairment
Allowance for Loan Losses, Collectively Evaluated for Impairment	649	739
Allowance for Loan Losses, Total	649	739	$ 914
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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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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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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