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LOANS AND ALLOWANCE FOR LOAN LOSSES - Troubled Debt Restructuring (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) contract | Sep. 30, 2018 USD ($) contract | Dec. 31, 2018 USD ($) contract
Financing Receivable, Modifications [Line Items] |  |  |
Total | $ 7,415 |  | $ 1,196
Specific reserves on TDRs | $ 184 |  | $ 0
Troubled Debt Restructurings: |  |  |
Number of Contracts | contract | 4 | 2 | 4
Pre-Modification Outstanding Recorded Investment | $ 1,680 | $ 93 | $ 582
Post-Modification Outstanding Recorded Investment | $ 1,515 | $ 93 | $ 582
Commercial real estate |  |  |
Troubled Debt Restructurings: |  |  |
Number of Contracts | contract | 4 |  |
Pre-Modification Outstanding Recorded Investment | $ 1,680 |  |
Post-Modification Outstanding Recorded Investment | 1,515 |  |
Commercial and industrial |  |  |
Troubled Debt Restructurings: |  |  |
Number of Contracts | contract |  |  | 3
Pre-Modification Outstanding Recorded Investment |  |  | $ 504
Post-Modification Outstanding Recorded Investment |  |  | $ 504
1-4 family residential |  |  |
Troubled Debt Restructurings: |  |  |
Number of Contracts | contract |  | 1 | 1
Pre-Modification Outstanding Recorded Investment |  | $ 15 | $ 78
Post-Modification Outstanding Recorded Investment |  | $ 15 | 78
Farmland |  |  |
Troubled Debt Restructurings: |  |  |
Number of Contracts | contract |  | 1 |
Pre-Modification Outstanding Recorded Investment |  | $ 78 |
Post-Modification Outstanding Recorded Investment |  | $ 78 |
Nonaccrual TDRs |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Total | 118 |  | 335
Performing TDRs |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Total | $ 7,297 |  | $ 861

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