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LOANS - Summary of Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	$ 2,376,647	$ 1,129,064
Business Activities Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,988	8,928
Current	1,251,950	1,120,136
Total loans	1,263,938	1,129,064
Past Due 90 days and Accruing	0	0
Business Activities Loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,122	5,074
Business Activities Loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,694	1,029
Business Activities Loans | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,172	2,825
Business Activities Loans | Commercial Real Estate:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,112	2,414
Current	428,642	415,705
Total loans	430,754	418,119
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial Real Estate: | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	637	0
Current	26,791	14,695
Total loans	27,428	14,695
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial Real Estate: | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,475	2,414
Current	401,851	401,010
Total loans	403,326	403,424
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial Real Estate: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	640	195
Business Activities Loans | Commercial Real Estate: | 30-59 Days Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial Real Estate: | 30-59 Days Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	640	195
Business Activities Loans | Commercial Real Estate: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	200	554
Business Activities Loans | Commercial Real Estate: | 60-89 Days Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial Real Estate: | 60-89 Days Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	200	554
Business Activities Loans | Commercial Real Estate: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,272	1,665
Business Activities Loans | Commercial Real Estate: | 90 Days or Greater Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	637	0
Business Activities Loans | Commercial Real Estate: | 90 Days or Greater Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	635	1,665
Business Activities Loans | Commercial and Industrial:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,193	538
Current	223,958	150,702
Total loans	228,151	151,240
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial and Industrial: | Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,004	307
Current	154,430	103,279
Total loans	158,434	103,586
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial and Industrial: | Agricultural and other loans to farmers
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	189	231
Current	31,270	31,577
Total loans	31,459	31,808
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial and Industrial: | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	38,258	15,846
Total loans	38,258	15,846
Past Due 90 days and Accruing	0	0
Business Activities Loans | Commercial and Industrial: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,900	292
Business Activities Loans | Commercial and Industrial: | 30-59 Days Past Due | Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,816	61
Business Activities Loans | Commercial and Industrial: | 30-59 Days Past Due | Agricultural and other loans to farmers
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	84	231
Business Activities Loans | Commercial and Industrial: | 30-59 Days Past Due | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial and Industrial: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	134	45
Business Activities Loans | Commercial and Industrial: | 60-89 Days Past Due | Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	29	45
Business Activities Loans | Commercial and Industrial: | 60-89 Days Past Due | Agricultural and other loans to farmers
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	105	0
Business Activities Loans | Commercial and Industrial: | 60-89 Days Past Due | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial and Industrial: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	159	201
Business Activities Loans | Commercial and Industrial: | 90 Days or Greater Past Due | Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	159	201
Business Activities Loans | Commercial and Industrial: | 90 Days or Greater Past Due | Agricultural and other loans to farmers
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial and Industrial: | 90 Days or Greater Past Due | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Total Commercial Loans:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,305	2,952
Current	652,600	566,407
Total loans	658,905	569,359
Past Due 90 days and Accruing	0	0
Business Activities Loans | Total Commercial Loans: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,540	487
Business Activities Loans | Total Commercial Loans: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	334	599
Business Activities Loans | Total Commercial Loans: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,431	1,866
Business Activities Loans | Residential Real Estate:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,597	5,851
Current	544,981	500,761
Total loans	549,578	506,612
Past Due 90 days and Accruing	0	0
Business Activities Loans | Residential Real Estate: | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,597	5,851
Current	544,981	500,761
Total loans	549,578	506,612
Past Due 90 days and Accruing	0	0
Business Activities Loans | Residential Real Estate: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	587	4,484
Business Activities Loans | Residential Real Estate: | 30-59 Days Past Due | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	587	4,484
Business Activities Loans | Residential Real Estate: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,291	429
Business Activities Loans | Residential Real Estate: | 60-89 Days Past Due | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,291	429
Business Activities Loans | Residential Real Estate: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	719	938
Business Activities Loans | Residential Real Estate: | 90 Days or Greater Past Due | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	719	938
Business Activities Loans | Consumer:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,086	125
Current	54,369	52,968
Total loans	55,455	53,093
Past Due 90 days and Accruing	0	0
Business Activities Loans | Consumer: | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	959	15
Current	46,803	46,906
Total loans	47,762	46,921
Past Due 90 days and Accruing	0	0
Business Activities Loans | Consumer: | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	127	110
Current	7,566	6,062
Total loans	7,693	6,172
Past Due 90 days and Accruing	0	0
Business Activities Loans | Consumer: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	995	103
Business Activities Loans | Consumer: | 30-59 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	891	0
Business Activities Loans | Consumer: | 30-59 Days Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	104	103
Business Activities Loans | Consumer: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	69	1
Business Activities Loans | Consumer: | 60-89 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	55	0
Business Activities Loans | Consumer: | 60-89 Days Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	14	1
Business Activities Loans | Consumer: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	22	21
Business Activities Loans | Consumer: | 90 Days or Greater Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	13	15
Business Activities Loans | Consumer: | 90 Days or Greater Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9	6
Acquired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,599
Acquired Credit Impaired	15,634
Total loans	1,112,709
Past Due 90 days and Accruing	6
Acquired Loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,368
Acquired Loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	530
Acquired Loans | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	701
Acquired Loans | Commercial Real Estate:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	673
Acquired Credit Impaired	10,716
Total loans	307,830	0
Past Due 90 days and Accruing	0
Acquired Loans | Commercial Real Estate: | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	21
Acquired Credit Impaired	300
Total loans	16,467	0
Past Due 90 days and Accruing	0
Acquired Loans | Commercial Real Estate: | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	652
Acquired Credit Impaired	10,416
Total loans	291,363	0
Past Due 90 days and Accruing	0
Acquired Loans | Commercial Real Estate: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	421
Acquired Loans | Commercial Real Estate: | 30-59 Days Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	21
Acquired Loans | Commercial Real Estate: | 30-59 Days Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	400
Acquired Loans | Commercial Real Estate: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	56
Acquired Loans | Commercial Real Estate: | 60-89 Days Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Commercial Real Estate: | 60-89 Days Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	56
Acquired Loans | Commercial Real Estate: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	196
Acquired Loans | Commercial Real Estate: | 90 Days or Greater Past Due | Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Commercial Real Estate: | 90 Days or Greater Past Due | Other commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	196
Acquired Loans | Commercial and Industrial:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	738
Acquired Credit Impaired	1,217
Total loans	121,851	0
Past Due 90 days and Accruing	6
Acquired Loans | Commercial and Industrial: | Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	738
Acquired Credit Impaired	1,217
Total loans	80,067	0
Past Due 90 days and Accruing	6
Acquired Loans | Commercial and Industrial: | Agricultural and other loans to farmers
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Credit Impaired	0
Total loans	0	0
Past Due 90 days and Accruing	0
Acquired Loans | Commercial and Industrial: | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Credit Impaired	0
Total loans	41,784	$ 0
Past Due 90 days and Accruing	0
Acquired Loans | Commercial and Industrial: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	459
Acquired Loans | Commercial and Industrial: | 30-59 Days Past Due | Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	459
Acquired Loans | Commercial and Industrial: | 30-59 Days Past Due | Agricultural and other loans to farmers
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Commercial and Industrial: | 30-59 Days Past Due | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Commercial and Industrial: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	246
Acquired Loans | Commercial and Industrial: | 60-89 Days Past Due | Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	246
Acquired Loans | Commercial and Industrial: | 60-89 Days Past Due | Agricultural and other loans to farmers
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Commercial and Industrial: | 60-89 Days Past Due | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Commercial and Industrial: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	33
Acquired Loans | Commercial and Industrial: | 90 Days or Greater Past Due | Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	33
Acquired Loans | Commercial and Industrial: | 90 Days or Greater Past Due | Agricultural and other loans to farmers
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Commercial and Industrial: | 90 Days or Greater Past Due | Tax exempt
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Total Commercial Loans:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,411
Acquired Credit Impaired	11,933
Total loans	429,681
Past Due 90 days and Accruing	6
Acquired Loans | Total Commercial Loans: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	880
Acquired Loans | Total Commercial Loans: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	302
Acquired Loans | Total Commercial Loans: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	229
Acquired Loans | Residential Real Estate:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,351
Acquired Credit Impaired	3,640
Total loans	611,254
Past Due 90 days and Accruing	0
Acquired Loans | Residential Real Estate: | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,351
Acquired Credit Impaired	3,640
Total loans	611,254
Past Due 90 days and Accruing	0
Acquired Loans | Residential Real Estate: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	680
Acquired Loans | Residential Real Estate: | 30-59 Days Past Due | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	680
Acquired Loans | Residential Real Estate: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	202
Acquired Loans | Residential Real Estate: | 60-89 Days Past Due | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	202
Acquired Loans | Residential Real Estate: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	469
Acquired Loans | Residential Real Estate: | 90 Days or Greater Past Due | Residential mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	469
Acquired Loans | Consumer:
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	837
Acquired Credit Impaired	61
Total loans	71,774
Past Due 90 days and Accruing	0
Acquired Loans | Consumer: | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	806
Acquired Credit Impaired	42
Total loans	68,707
Past Due 90 days and Accruing	0
Acquired Loans | Consumer: | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	31
Acquired Credit Impaired	19
Total loans	3,067
Past Due 90 days and Accruing	0
Acquired Loans | Consumer: | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	808
Acquired Loans | Consumer: | 30-59 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	793
Acquired Loans | Consumer: | 30-59 Days Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	15
Acquired Loans | Consumer: | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	26
Acquired Loans | Consumer: | 60-89 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	13
Acquired Loans | Consumer: | 60-89 Days Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	13
Acquired Loans | Consumer: | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3
Acquired Loans | Consumer: | 90 Days or Greater Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0
Acquired Loans | Consumer: | 90 Days or Greater Past Due | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 3

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- Definition

The carrying amount as of the balance sheet date of loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer, for which it was deemed probable at acquisition that the investor would be unable to collect all contractually required payments, and to which the income recognition total model was not applied.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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+ References

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-Publisher FASB
-Name Accounting Standards Codification
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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