LOANS AND ALLOWANCE - Loan individually evaluated for impairment by class of loans - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans individually evaluated for impairment and average balance of impaired loans
Performing troubled debt restructurings excluded as allowed	$ 394	$ 1,925
Unpaid Principal Balance
With an allowance recorded	13,721	6,272
With no related allowance recorded	16,066	17,236
Total impaired loans	29,787	23,508
Recorded Investment
With an allowance recorded	12,253	6,141
With no related allowance recorded	11,361	13,131
Total impaired loans	23,614	19,272
Allowance for Loan Losses Allocated
With an allowance recorded	3,778	1,800
Total impaired loans	3,778	1,800
Commercial \| Commercial and industrial
Unpaid Principal Balance
With an allowance recorded	2,231	719
With no related allowance recorded	490	1,028
Recorded Investment
With an allowance recorded	2,197	689
With no related allowance recorded	28	322
Allowance for Loan Losses Allocated
With an allowance recorded	1,342	429
Commercial \| Agricultural
Unpaid Principal Balance
With an allowance recorded	1,484	1,441
With no related allowance recorded	129	254
Recorded Investment
With an allowance recorded	1,484	1,441
With no related allowance recorded	129	253
Allowance for Loan Losses Allocated
With an allowance recorded	705	469
Commercial real estate \| Farm
Unpaid Principal Balance
With an allowance recorded	1,346	1,106
With no related allowance recorded	575	506
Recorded Investment
With an allowance recorded	1,344	1,105
With no related allowance recorded	310	241
Allowance for Loan Losses Allocated
With an allowance recorded	550	360
Commercial real estate \| Hotel
Unpaid Principal Balance
With an allowance recorded	4,196
With no related allowance recorded		64
Recorded Investment
With an allowance recorded	2,918
With no related allowance recorded		64
Allowance for Loan Losses Allocated
With an allowance recorded	203
Commercial real estate \| Construction and development
Unpaid Principal Balance
With no related allowance recorded	37	239
Recorded Investment
With no related allowance recorded	37	162
Commercial real estate \| Other
Unpaid Principal Balance
With an allowance recorded	3,303	1,900
With no related allowance recorded	4,345	3,558
Recorded Investment
With an allowance recorded	3,211	1,755
With no related allowance recorded	2,309	2,652
Allowance for Loan Losses Allocated
With an allowance recorded	834	395
Residential \| 1-4 family
Unpaid Principal Balance
With an allowance recorded	1,062	1,091
With no related allowance recorded	7,690	9,215
Recorded Investment
With an allowance recorded	1,000	1,046
With no related allowance recorded	6,109	7,432
Allowance for Loan Losses Allocated
With an allowance recorded	143	146
Residential \| Home equity
Unpaid Principal Balance
With an allowance recorded	99	15
With no related allowance recorded	1,734	2,233
Recorded Investment
With an allowance recorded	99	105
With no related allowance recorded	1,479	1,875
Allowance for Loan Losses Allocated
With an allowance recorded	1	1
Consumer \| Direct
Unpaid Principal Balance
With no related allowance recorded	1,066	139
Recorded Investment
With no related allowance recorded	$ 960	$ 130

Total amount of allowance for loan losses allocated.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

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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=66008989&loc=SL6953550-111524

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+ 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 (a)(4)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

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