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ALLOWANCE FOR LOAN LOSSES - Loans by Credit Risk Rating (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Credit quality information
Loans	$ 2,729,417	$ 2,641,092
Total commercial real estate
Credit quality information
Loans	982,070	930,661
Total commercial real estate | Construction and land development
Credit quality information
Loans	62,473	34,290
Total commercial real estate | Other commercial real estate
Credit quality information
Loans	919,597	896,371
Total commercial and industrial
Credit quality information
Loans	539,442	423,291
Total commercial and industrial | Commercial
Credit quality information
Loans	454,339	298,764
Total commercial and industrial | Agricultural
Credit quality information
Loans	18,185	20,224
Total commercial and industrial | Tax exempt
Credit quality information
Loans	66,918	104,303
Special mention
Credit quality information
Loans	15,104	16,230
Substandard
Credit quality information
Loans	36,329	39,442
Non-accrual
Credit quality information
Loans	13,988	11,550
Total classified
Credit quality information
Loans	50,317	50,992
Total Criticized
Credit quality information
Loans	65,421	67,222
Business Activities Loans
Credit quality information
Loans	2,019,602	1,835,230
Business Activities Loans | Total commercial real estate
Credit quality information
Loans	783,045	697,438
Business Activities Loans | Total commercial real estate | Construction and land development
Credit quality information
Loans	60,096	31,387
Business Activities Loans | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	722,949	666,051
Business Activities Loans | Total commercial and industrial
Credit quality information
Loans	443,009	326,570
Business Activities Loans | Total commercial and industrial | Commercial
Credit quality information
Loans	384,390	239,692
Business Activities Loans | Total commercial and industrial | Agricultural
Credit quality information
Loans	18,026	20,018
Business Activities Loans | Total commercial and industrial | Tax exempt
Credit quality information
Loans	40,593	66,860
Business Activities Loans | Residential real estate and consumer
Credit quality information
Loans	793,548	811,222
Business Activities Loans | Residential real estate and consumer | Residential mortgages
Credit quality information
Loans	725,450	740,687
Business Activities Loans | Residential real estate and consumer | Home equity
Credit quality information
Loans	59,413	59,368
Business Activities Loans | Residential real estate and consumer | Other consumer
Credit quality information
Loans	8,685	11,167
Business Activities Loans | Performing | Residential real estate and consumer
Credit quality information
Loans	788,872	807,224
Business Activities Loans | Performing | Residential real estate and consumer | Residential mortgages
Credit quality information
Loans	721,409	737,325
Business Activities Loans | Performing | Residential real estate and consumer | Home equity
Credit quality information
Loans	58,795	58,753
Business Activities Loans | Performing | Residential real estate and consumer | Other consumer
Credit quality information
Loans	8,668	11,146
Business Activities Loans | Nonperforming | Residential real estate and consumer
Credit quality information
Loans	4,676	3,998
Business Activities Loans | Nonperforming | Residential real estate and consumer | Residential mortgages
Credit quality information
Loans	4,041	3,362
Business Activities Loans | Nonperforming | Residential real estate and consumer | Home equity
Credit quality information
Loans	618	615
Business Activities Loans | Nonperforming | Residential real estate and consumer | Other consumer
Credit quality information
Loans	17	21
Business Activities Loans | Pass | Total commercial real estate
Credit quality information
Loans	759,549	677,943
Business Activities Loans | Pass | Total commercial real estate | Construction and land development
Credit quality information
Loans	59,829	31,057
Business Activities Loans | Pass | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	699,720	646,886
Business Activities Loans | Pass | Total commercial and industrial
Credit quality information
Loans	424,492	307,129
Business Activities Loans | Pass | Total commercial and industrial | Commercial
Credit quality information
Loans	366,761	221,329
Business Activities Loans | Pass | Total commercial and industrial | Agricultural
Credit quality information
Loans	17,138	18,940
Business Activities Loans | Pass | Total commercial and industrial | Tax exempt
Credit quality information
Loans	40,593	66,860
Business Activities Loans | Special mention
Credit quality information
Loans	12,774	8,525
Business Activities Loans | Special mention | Total commercial real estate
Credit quality information
Loans	9,011	5,483
Business Activities Loans | Special mention | Total commercial real estate | Construction and land development
Credit quality information
Loans	0	0
Business Activities Loans | Special mention | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	9,011	5,483
Business Activities Loans | Special mention | Total commercial and industrial
Credit quality information
Loans	3,763	3,042
Business Activities Loans | Special mention | Total commercial and industrial | Commercial
Credit quality information
Loans	3,544	2,744
Business Activities Loans | Special mention | Total commercial and industrial | Agricultural
Credit quality information
Loans	219	298
Business Activities Loans | Special mention | Total commercial and industrial | Tax exempt
Credit quality information
Loans	0	0
Business Activities Loans | Substandard
Credit quality information
Loans	26,154	26,055
Business Activities Loans | Substandard | Total commercial real estate
Credit quality information
Loans	13,257	12,304
Business Activities Loans | Substandard | Total commercial real estate | Construction and land development
Credit quality information
Loans		330
Business Activities Loans | Substandard | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	13,257	11,974
Business Activities Loans | Substandard | Total commercial and industrial
Credit quality information
Loans	13,807	15,646
Business Activities Loans | Substandard | Total commercial and industrial | Commercial
Credit quality information
Loans	13,363	14,866
Business Activities Loans | Substandard | Total commercial and industrial | Agricultural
Credit quality information
Loans	444	780
Business Activities Loans | Substandard | Total commercial and industrial | Tax exempt
Credit quality information
Loans	0	0
Business Activities Loans | Doubtful | Total commercial real estate
Credit quality information
Loans	1,228	1,708
Business Activities Loans | Doubtful | Total commercial real estate | Construction and land development
Credit quality information
Loans	267	0
Business Activities Loans | Doubtful | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	961	1,708
Business Activities Loans | Doubtful | Total commercial and industrial
Credit quality information
Loans	947	753
Business Activities Loans | Doubtful | Total commercial and industrial | Commercial
Credit quality information
Loans	722	753
Business Activities Loans | Doubtful | Total commercial and industrial | Agricultural
Credit quality information
Loans	225	0
Business Activities Loans | Doubtful | Total commercial and industrial | Tax exempt
Credit quality information
Loans	0	0
Business Activities Loans | Non-accrual
Credit quality information
Loans	7,761	8,354
Business Activities Loans | Total classified
Credit quality information
Loans	33,915	34,409
Business Activities Loans | Total Criticized
Credit quality information
Loans	46,689	42,934
Business Activities Loans | Total Criticized | Total commercial real estate
Credit quality information
Loans	783,045	697,438
Business Activities Loans | Total Criticized | Total commercial real estate | Construction and land development
Credit quality information
Loans	60,096	31,387
Business Activities Loans | Total Criticized | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	722,949	666,051
Business Activities Loans | Total Criticized | Total commercial and industrial
Credit quality information
Loans	443,009	326,570
Business Activities Loans | Total Criticized | Total commercial and industrial | Commercial
Credit quality information
Loans	384,390	239,692
Business Activities Loans | Total Criticized | Total commercial and industrial | Agricultural
Credit quality information
Loans	18,026	20,018
Business Activities Loans | Total Criticized | Total commercial and industrial | Tax exempt
Credit quality information
Loans	40,593	66,860
Acquired Loans
Credit quality information
Loans	709,815	805,862
Acquired Loans | Total commercial real estate
Credit quality information
Loans	199,025	233,223
Acquired Loans | Total commercial real estate | Construction and land development
Credit quality information
Loans	2,377	2,903
Acquired Loans | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	196,648	230,320
Acquired Loans | Total commercial and industrial
Credit quality information
Loans	96,433	96,721
Acquired Loans | Total commercial and industrial | Commercial
Credit quality information
Loans	69,949	59,072
Acquired Loans | Total commercial and industrial | Agricultural
Credit quality information
Loans	159	206
Acquired Loans | Total commercial and industrial | Tax exempt
Credit quality information
Loans	26,325	37,443
Acquired Loans | Residential real estate and consumer
Credit quality information
Loans	414,357	475,918
Acquired Loans | Residential real estate and consumer | Residential mortgages
Credit quality information
Loans	358,258	411,170
Acquired Loans | Residential real estate and consumer | Home equity
Credit quality information
Loans	54,686	63,033
Acquired Loans | Residential real estate and consumer | Other consumer
Credit quality information
Loans	1,413	1,715
Acquired Loans | Performing | Residential real estate and consumer
Credit quality information
Loans	409,250	472,022
Acquired Loans | Performing | Residential real estate and consumer | Residential mortgages
Credit quality information
Loans	353,736	407,811
Acquired Loans | Performing | Residential real estate and consumer | Home equity
Credit quality information
Loans	54,101	62,504
Acquired Loans | Performing | Residential real estate and consumer | Other consumer
Credit quality information
Loans	1,413	1,707
Acquired Loans | Nonperforming | Residential real estate and consumer
Credit quality information
Loans	5,107	3,896
Acquired Loans | Nonperforming | Residential real estate and consumer | Residential mortgages
Credit quality information
Loans	4,522	3,359
Acquired Loans | Nonperforming | Residential real estate and consumer | Home equity
Credit quality information
Loans	585	529
Acquired Loans | Nonperforming | Residential real estate and consumer | Other consumer
Credit quality information
Loans		8
Acquired Loans | Pass | Total commercial real estate
Credit quality information
Loans	187,984	220,903
Acquired Loans | Pass | Total commercial real estate | Construction and land development
Credit quality information
Loans	2,014	2,412
Acquired Loans | Pass | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	185,970	218,491
Acquired Loans | Pass | Total commercial and industrial
Credit quality information
Loans	93,849	88,649
Acquired Loans | Pass | Total commercial and industrial | Commercial
Credit quality information
Loans	67,501	51,184
Acquired Loans | Pass | Total commercial and industrial | Agricultural
Credit quality information
Loans	23	58
Acquired Loans | Pass | Total commercial and industrial | Tax exempt
Credit quality information
Loans	26,325	37,407
Acquired Loans | Special mention
Credit quality information
Loans	2,330	7,705
Acquired Loans | Special mention | Total commercial real estate
Credit quality information
Loans	1,499	2,273
Acquired Loans | Special mention | Total commercial real estate | Construction and land development
Credit quality information
Loans		12
Acquired Loans | Special mention | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	1,499	2,261
Acquired Loans | Special mention | Total commercial and industrial
Credit quality information
Loans	831	5,432
Acquired Loans | Special mention | Total commercial and industrial | Commercial
Credit quality information
Loans	831	5,432
Acquired Loans | Substandard
Credit quality information
Loans	10,175	13,387
Acquired Loans | Substandard | Total commercial real estate
Credit quality information
Loans	7,980	9,879
Acquired Loans | Substandard | Total commercial real estate | Construction and land development
Credit quality information
Loans	363	479
Acquired Loans | Substandard | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	7,617	9,400
Acquired Loans | Substandard | Total commercial and industrial
Credit quality information
Loans	1,183	2,299
Acquired Loans | Substandard | Total commercial and industrial | Commercial
Credit quality information
Loans	1,047	2,115
Acquired Loans | Substandard | Total commercial and industrial | Agricultural
Credit quality information
Loans	136	148
Acquired Loans | Substandard | Total commercial and industrial | Tax exempt
Credit quality information
Loans		36
Acquired Loans | Doubtful | Total commercial real estate
Credit quality information
Loans	1,562	168
Acquired Loans | Doubtful | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	1,562	168
Acquired Loans | Doubtful | Total commercial and industrial
Credit quality information
Loans	570	341
Acquired Loans | Doubtful | Total commercial and industrial | Commercial
Credit quality information
Loans	570	341
Acquired Loans | Non-accrual
Credit quality information
Loans	6,227	3,196
Acquired Loans | Total classified
Credit quality information
Loans	16,402	16,583
Acquired Loans | Total classified | Total commercial real estate
Credit quality information
Loans	199,025	233,223
Acquired Loans | Total classified | Total commercial real estate | Construction and land development
Credit quality information
Loans	2,377	2,903
Acquired Loans | Total classified | Total commercial real estate | Other commercial real estate
Credit quality information
Loans	196,648	230,320
Acquired Loans | Total classified | Total commercial and industrial
Credit quality information
Loans	96,433	96,721
Acquired Loans | Total classified | Total commercial and industrial | Commercial
Credit quality information
Loans	69,949	59,072
Acquired Loans | Total classified | Total commercial and industrial | Agricultural
Credit quality information
Loans	159	206
Acquired Loans | Total classified | Total commercial and industrial | Tax exempt
Credit quality information
Loans	26,325	37,443
Acquired Loans | Total Criticized
Credit quality information
Loans	$ 18,732	$ 24,288

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

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-Publisher FASB
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