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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Credit Exposure (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017 | Jun. 30, 2017
--- | --- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | $ 1,593,474 | $ 1,359,544 | $ 1,296,843
Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 1,573,038 | 1,329,802 |
Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 11,217 | 23,213 |
Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 9,219 | 6,529 |
Commercial and industrial |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 234,396 | 197,508 | 217,497
Commercial and industrial | Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 231,884 | 196,890 |
Commercial and industrial | Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 1,585 | 348 |
Commercial and industrial | Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 927 | 270 |
Construction and development |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 211,745 | 196,774 | 177,600
Construction and development | Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 210,839 | 196,515 |
Construction and development | Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 906 | 259 |
Construction and development | Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 0 | 0 |
Commercial real estate |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 570,448 | 418,137 | 378,722
Commercial real estate | Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 557,319 | 412,488 |
Commercial real estate | Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 6,572 | 1,135 |
Commercial real estate | Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 6,557 | 4,514 |
Farmland |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 68,272 | 59,023 | 63,839
Farmland | Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 67,901 | 58,623 |
Farmland | Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 52 | 226 |
Farmland | Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 319 | 174 |
1-4 family residential |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 392,940 | 374,371 | 356,457
1-4 family residential | Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 391,447 | 373,154 |
1-4 family residential | Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 648 | 442 |
1-4 family residential | Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 845 | 775 |
Multi-family residential |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 39,023 | 36,574 | 28,833
Multi-family residential | Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 37,768 | 16,073 |
Multi-family residential | Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 1,255 | 20,284 |
Multi-family residential | Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 0 | 217 |
Consumer and Overdrafts |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 53,288 | 51,561 |
Consumer and Overdrafts | Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 53,219 | 51,409 |
Consumer and Overdrafts | Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 49 | 65 |
Consumer and Overdrafts | Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 20 | 87 |
Agricultural |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 23,362 | 25,596 | $ 21,854
Agricultural | Pass |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 22,661 | 24,650 |
Agricultural | Special mention |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | 150 | 454 |
Agricultural | Substandard |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total loans | $ 551 | $ 492 |

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