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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Credit Exposure in Company Loan Portfolio (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | $ 459,334 | $ 628,756
Credit Exposure 2020 | 384,937 | 286,256
Credit Exposure 2019 | 222,005 | 212,899
Credit Exposure 2018 | 175,797 | 163,831
Credit Exposure 2017 | 128,621 | 174,558
Credit Exposure Prior | 386,917 | 274,903
Revolving Loans Amortized Cost | 132,553 | 125,616
Total | 1,890,164 | 1,866,819
Credit Exposure 2021.Charge - offs | (87) | (243)
Credit Exposure 2020.Charge - offs | (18) | (63)
Credit Exposure 2019.Charge - offs | (200) | (92)
Credit Exposure 2018.Charge - offs | (83) | (43)
Credit Exposure 2017.Charge - offs | (492) | (12)
Credit Exposure Prior.Charge - offs | (271) | (65)
Credit Exposure Revolving Loans Amortized Cost.Charge - offs | (7) | (25)
Total | (1,158) | (543)
Credit Exposure 2021, Recoveries | 36 | 49
Credit Exposure 2020, Recoveries | 3 | 2
Credit Exposure 2019, Recoveries |  | 55
Credit Exposure 2018, Recoveries | 8 | 8
Credit Exposure 2017, Recoveries | 13 | 24
Credit Exposure Prior, Recoveries | 17 | 30
Credit Exposure Revolving Loans Amortized Cost, Recoveries | 10 | 44
Total | 87 | 212
Credit Exposure 2021,Current period net | (51) | (194)
Credit Exposure 2020,Current period net | (15) | (61)
Credit Exposure 2019,Current period net | (200) | (37)
Credit Exposure 2018,Current period net | (75) | (35)
Credit Exposure 2017,Current period net | (479) | 12
Credit Exposure Prior,Current period net | (254) | (35)
Credit Exposure Revolving Loans Amortized Cost,Current period net | 3 | 19
Total | (1,071) | (331)
Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 458,898 | 628,236
Credit Exposure 2020 | 376,631 | 281,239
Credit Exposure 2019 | 216,744 | 205,907
Credit Exposure 2018 | 160,689 | 148,724
Credit Exposure 2017 | 108,516 | 157,326
Credit Exposure Prior | 364,790 | 264,245
Revolving Loans Amortized Cost | 132,514 | 125,616
Total | 1,818,782 | 1,811,293
Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 436 | 496
Credit Exposure 2020 | 906 | 2,918
Credit Exposure 2019 | 1,612 | 3,773
Credit Exposure 2018 | 3,298 | 5,922
Credit Exposure 2017 | 5,678 | 7,048
Credit Exposure Prior | 1,873 | 652
Total | 13,803 | 20,809
Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2020 | 7,356 | 923
Credit Exposure 2019 | 3,067 | 2,565
Credit Exposure 2018 | 11,205 | 4,963
Credit Exposure 2017 | 13,983 | 5,192
Credit Exposure Prior | 18,375 | 8,369
Total | 53,986 | 22,012
Nonaccrual |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 |  | 24
Credit Exposure 2020 | 44 | 1,176
Credit Exposure 2019 | 582 | 654
Credit Exposure 2018 | 605 | 4,222
Credit Exposure 2017 | 444 | 4,992
Credit Exposure Prior | 1,879 | 1,637
Revolving Loans Amortized Cost | 39 |
Total | 3,593 | 12,705
Commercial and industrial |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 211,082 | 278,811
Credit Exposure 2020 | 67,831 | 30,989
Credit Exposure 2019 | 24,389 | 13,635
Credit Exposure 2018 | 10,971 | 8,456
Credit Exposure 2017 | 6,178 | 7,512
Credit Exposure Prior | 20,369 | 16,294
Revolving Loans Amortized Cost | 83,804 | 90,074
Total | 424,624 | 445,771
Credit Exposure 2019.Charge - offs | (145) | (43)
Credit Exposure 2018.Charge - offs | (67) |
Credit Exposure 2017.Charge - offs | (19) |
Credit Exposure Revolving Loans Amortized Cost.Charge - offs | (7) | (25)
Total | (238) | (68)
Credit Exposure 2019, Recoveries |  | 43
Credit Exposure Prior, Recoveries | 1 | 14
Credit Exposure Revolving Loans Amortized Cost, Recoveries | 10 | 44
Total | 11 | 101
Credit Exposure 2019,Current period net | (145) |
Credit Exposure 2018,Current period net | (67) |
Credit Exposure 2017,Current period net | (19) |
Credit Exposure Prior,Current period net | 1 | 14
Credit Exposure Revolving Loans Amortized Cost,Current period net | 3 | 19
Total | (227) | 33
Commercial and industrial | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 211,052 | 278,687
Credit Exposure 2020 | 67,442 | 30,563
Credit Exposure 2019 | 24,286 | 12,860
Credit Exposure 2018 | 10,741 | 4,366
Credit Exposure 2017 | 6,105 | 6,131
Credit Exposure Prior | 20,334 | 16,294
Revolving Loans Amortized Cost | 83,765 | 90,074
Total | 423,725 | 438,975
Commercial and industrial | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 30 | 124
Credit Exposure 2020 | 105 | 119
Credit Exposure 2019 |  | 222
Credit Exposure 2018 |  | 4,040
Credit Exposure 2017 | 27 | 1,324
Total | 162 | 5,829
Commercial and industrial | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2020 | 284 | 307
Credit Exposure 2019 | 62 | 540
Credit Exposure 2018 | 226 | 50
Credit Exposure 2017 | 46 | 43
Credit Exposure Prior | 33 |
Total | 651 | 940
Commercial and industrial | Nonaccrual |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2019 | 41 | 13
Credit Exposure 2018 | 4 |
Credit Exposure 2017 |  | 14
Credit Exposure Prior | 2 |
Revolving Loans Amortized Cost | 39 |
Total | 86 | 27
Construction and development |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 75,324 | 118,946
Credit Exposure 2020 | 96,106 | 77,535
Credit Exposure 2019 | 42,590 | 26,217
Credit Exposure 2018 | 8,417 | 25,514
Credit Exposure 2017 | 18,431 | 8,422
Credit Exposure Prior | 16,080 | 10,507
Revolving Loans Amortized Cost | 7,054 | 3,266
Total | 264,002 | 270,407
Credit Exposure Prior, Recoveries | 1 |
Total | 1 |
Credit Exposure Prior,Current period net | 1 |
Total | 1 |
Construction and development | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 75,324 | 118,590
Credit Exposure 2020 | 95,313 | 76,926
Credit Exposure 2019 | 41,751 | 26,212
Credit Exposure 2018 | 8,414 | 24,524
Credit Exposure 2017 | 17,464 | 7,742
Credit Exposure Prior | 16,080 | 10,507
Revolving Loans Amortized Cost | 7,054 | 3,266
Total | 261,400 | 267,767
Construction and development | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 |  | 356
Credit Exposure 2020 | 793 |
Credit Exposure 2018 |  | 990
Credit Exposure 2017 | 967 |
Total | 1,760 | 1,346
Construction and development | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2020 |  | 609
Credit Exposure 2019 | 609 | 5
Credit Exposure 2018 | 3 |
Credit Exposure 2017 |  | 680
Total | 612 | 1,294
Construction and development | Nonaccrual |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2019 | 230 |
Total | 230 |
Commercial real estate |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 60,267 | 91,819
Credit Exposure 2020 | 106,888 | 84,609
Credit Exposure 2019 | 75,481 | 95,245
Credit Exposure 2018 | 80,201 | 82,231
Credit Exposure 2017 | 64,970 | 101,884
Credit Exposure Prior | 207,196 | 132,538
Revolving Loans Amortized Cost | 13,461 | 5,890
Total | 608,464 | 594,216
Commercial real estate | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 59,861 | 91,819
Credit Exposure 2020 | 99,816 | 80,753
Credit Exposure 2019 | 71,480 | 89,542
Credit Exposure 2018 | 65,798 | 72,311
Credit Exposure 2017 | 46,928 | 86,946
Credit Exposure Prior | 186,791 | 123,463
Revolving Loans Amortized Cost | 13,461 | 5,890
Total | 544,135 | 550,724
Commercial real estate | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 406 |
Credit Exposure 2020 |  | 2,716
Credit Exposure 2019 | 1,610 | 3,542
Credit Exposure 2018 | 3,298 | 849
Credit Exposure 2017 | 4,630 | 5,724
Credit Exposure Prior | 1,843 | 449
Total | 11,787 | 13,280
Commercial real estate | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2020 | 7,072 |
Credit Exposure 2019 | 2,391 | 2,010
Credit Exposure 2018 | 10,943 | 4,913
Credit Exposure 2017 | 13,210 | 4,445
Credit Exposure Prior | 18,204 | 8,240
Total | 51,820 | 19,608
Commercial real estate | Nonaccrual |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2020 |  | 1,140
Credit Exposure 2019 |  | 151
Credit Exposure 2018 | 162 | 4,158
Credit Exposure 2017 | 202 | 4,769
Credit Exposure Prior | 358 | 386
Total | 722 | 10,604
Farmland |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 28,867 | 17,444
Credit Exposure 2020 | 13,528 | 12,668
Credit Exposure 2019 | 9,286 | 10,327
Credit Exposure 2018 | 9,158 | 6,620
Credit Exposure 2017 | 5,494 | 9,904
Credit Exposure Prior | 22,442 | 15,681
Revolving Loans Amortized Cost | 5,750 | 5,864
Total | 94,525 | 78,508
Credit Exposure 2019.Charge - offs | (17) |
Credit Exposure 2017.Charge - offs | (472) |
Credit Exposure Prior.Charge - offs | (271) |
Total | (760) |
Credit Exposure 2017, Recoveries | 11 |
Total | 11 |
Credit Exposure 2019,Current period net | (17) |
Credit Exposure 2017,Current period net | (461) |
Credit Exposure Prior,Current period net | (271) |
Total | (749) |
Farmland | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 28,867 | 17,444
Credit Exposure 2020 | 13,528 | 12,668
Credit Exposure 2019 | 9,286 | 10,327
Credit Exposure 2018 | 9,158 | 6,620
Credit Exposure 2017 | 5,494 | 9,904
Credit Exposure Prior | 22,182 | 15,402
Revolving Loans Amortized Cost | 5,750 | 5,864
Total | 94,265 | 78,229
Farmland | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure Prior | 30 | 35
Total | 30 | 35
Farmland | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure Prior | 121 | 129
Total | 121 | 129
Farmland | Nonaccrual |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure Prior | 109 | 115
Total | 109 | 115
1-4 family residential |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 54,740 | 87,578
Credit Exposure 2020 | 76,540 | 62,937
Credit Exposure 2019 | 57,276 | 52,413
Credit Exposure 2018 | 43,379 | 37,268
Credit Exposure 2017 | 30,805 | 44,021
Credit Exposure Prior | 115,756 | 94,788
Revolving Loans Amortized Cost | 11,120 | 10,091
Total | 389,616 | 389,096
Credit Exposure 2017.Charge - offs |  | (9)
Credit Exposure Prior.Charge - offs |  | (59)
Total |  | (68)
Credit Exposure Prior, Recoveries |  | 2
Total |  | 2
Credit Exposure 2017,Current period net |  | (9)
Credit Exposure Prior,Current period net |  | (57)
Total |  | (66)
1-4 family residential | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 54,740 | 87,578
Credit Exposure 2020 | 76,540 | 62,937
Credit Exposure 2019 | 57,049 | 52,087
Credit Exposure 2018 | 43,069 | 37,224
Credit Exposure 2017 | 30,548 | 43,858
Credit Exposure Prior | 114,346 | 93,486
Revolving Loans Amortized Cost | 11,120 | 10,091
Total | 387,412 | 387,261
1-4 family residential | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2017 | 27 |
Credit Exposure Prior |  | 168
Total | 27 | 168
1-4 family residential | Nonaccrual |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2019 | 227 | 326
Credit Exposure 2018 | 310 | 44
Credit Exposure 2017 | 230 | 163
Credit Exposure Prior | 1,410 | 1,134
Total | 2,177 | 1,667
Multi-family residential |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 12,271 | 5,889
Credit Exposure 2020 | 4,828 | 4,498
Credit Exposure 2019 | 4,426 | 3,617
Credit Exposure 2018 | 15,480 | 1,371
Credit Exposure 2017 | 1,274 | 1,737
Credit Exposure Prior | 3,601 | 4,391
Revolving Loans Amortized Cost | 206 | 198
Total | 42,086 | 21,701
Multi-family residential | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 12,271 | 5,889
Credit Exposure 2020 | 4,828 | 4,498
Credit Exposure 2019 | 4,426 | 3,617
Credit Exposure 2018 | 15,480 | 1,371
Credit Exposure 2017 | 593 | 1,737
Credit Exposure Prior | 3,601 | 4,391
Revolving Loans Amortized Cost | 206 | 198
Total | 41,405 | 21,701
Multi-family residential | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2017 | 681 |
Total | 681 |
Consumer and Overdrafts |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 15,248 | 24,780
Credit Exposure 2020 | 16,886 | 11,295
Credit Exposure 2019 | 7,320 | 9,509
Credit Exposure 2018 | 6,913 | 1,728
Credit Exposure 2017 | 1,063 | 736
Credit Exposure Prior | 804 | 513
Revolving Loans Amortized Cost | 4,005 | 2,825
Total | 52,239 | 51,386
Credit Exposure 2021.Charge - offs | (87) | (243)
Credit Exposure 2020.Charge - offs | (18) | (63)
Credit Exposure 2019.Charge - offs | (38) | (31)
Credit Exposure 2018.Charge - offs | (16) | (43)
Credit Exposure 2017.Charge - offs | (1) | (3)
Credit Exposure Prior.Charge - offs |  | (6)
Total | (160) | (389)
Credit Exposure 2021, Recoveries | 36 | 49
Credit Exposure 2020, Recoveries | 3 | 2
Credit Exposure 2019, Recoveries |  | 12
Credit Exposure 2018, Recoveries | 8 | 8
Credit Exposure 2017, Recoveries | 2 | 4
Credit Exposure Prior, Recoveries | 15 | 13
Total | 64 | 88
Credit Exposure 2021,Current period net | (51) | (194)
Credit Exposure 2020,Current period net | (15) | (61)
Credit Exposure 2019,Current period net | (38) | (19)
Credit Exposure 2018,Current period net | (8) | (35)
Credit Exposure 2017,Current period net | 1 | 1
Credit Exposure Prior,Current period net | 15 | 7
Total | (96) | (301)
Consumer and Overdrafts | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 15,248 | 24,740
Credit Exposure 2020 | 16,834 | 11,176
Credit Exposure 2019 | 7,234 | 9,369
Credit Exposure 2018 | 6,807 | 1,701
Credit Exposure 2017 | 1,051 | 735
Credit Exposure Prior | 804 | 513
Revolving Loans Amortized Cost | 4,005 | 2,825
Total | 51,983 | 51,059
Consumer and Overdrafts | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 |  | 16
Credit Exposure 2020 | 8 | 83
Credit Exposure 2019 | 2 | 9
Credit Exposure 2018 |  | 7
Total | 10 | 115
Consumer and Overdrafts | Nonaccrual |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 |  | 24
Credit Exposure 2020 | 44 | 36
Credit Exposure 2019 | 84 | 131
Credit Exposure 2018 | 106 | 20
Credit Exposure 2017 | 12 | 1
Total | 246 | 212
Agricultural |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 1,535 | 3,489
Credit Exposure 2020 | 2,330 | 1,725
Credit Exposure 2019 | 1,237 | 1,936
Credit Exposure 2018 | 1,278 | 643
Credit Exposure 2017 | 406 | 342
Credit Exposure Prior | 669 | 191
Revolving Loans Amortized Cost | 7,153 | 7,408
Total | 14,608 | 15,734
Credit Exposure 2019.Charge - offs |  | (18)
Total |  | (18)
Credit Exposure 2017, Recoveries |  | 20
Total |  | 20
Credit Exposure 2019,Current period net |  | (18)
Credit Exposure 2017,Current period net |  | 20
Total |  | 2
Agricultural | Pass |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2021 | 1,535 | 3,489
Credit Exposure 2020 | 2,330 | 1,718
Credit Exposure 2019 | 1,232 | 1,893
Credit Exposure 2018 | 1,222 | 607
Credit Exposure 2017 | 333 | 273
Credit Exposure Prior | 652 | 189
Revolving Loans Amortized Cost | 7,153 | 7,408
Total | 14,457 | 15,577
Agricultural | Special Mention |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2018 |  | 36
Credit Exposure 2017 | 27 |
Total | 27 | 36
Agricultural | Substandard |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2020 |  | 7
Credit Exposure 2019 | 5 | 10
Credit Exposure 2018 | 33 |
Credit Exposure 2017 | 46 | 24
Credit Exposure Prior | 17 |
Total | 101 | 41
Agricultural | Nonaccrual |  |
Financing Receivable Recorded Investment [Line Items] |  |
Credit Exposure 2019 |  | 33
Credit Exposure 2018 | 23 |
Credit Exposure 2017 |  | 45
Credit Exposure Prior |  | 2
Total | $ 23 | $ 80

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