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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of TDR Modification Type (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) loan | Dec. 31, 2018 USD ($) loan | Dec. 31, 2017 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 14 | 3 | 4
Pre- Modification Outstanding Recorded Investment | $ 21,726 | $ 358 | $ 5,122
Post-Modification Outstanding Recorded Investment | $ 16,734 | $ 350 | $ 5,139
Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 14 | 0 | 2
Post-Modification Outstanding Recorded Investment | $ 16,734 | $ 0 | $ 1,290
Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 2 | 2
Post-Modification Outstanding Recorded Investment | $ 0 | $ 163 | $ 3,849
Change in Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0
Chapter 7 Bankruptcy |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0
Other |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 1 | 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 187 | $ 0
Commercial | Commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 12 | 2 | 1
Pre- Modification Outstanding Recorded Investment | $ 18,512 | $ 171 | $ 2,706
Post-Modification Outstanding Recorded Investment | $ 15,865 | $ 163 | $ 2,706
Commercial | Commercial and industrial | Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 12 | 0 | 0
Post-Modification Outstanding Recorded Investment | $ 15,865 | $ 0 | $ 0
Commercial | Commercial and industrial | Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 2 | 1
Post-Modification Outstanding Recorded Investment | $ 0 | $ 163 | $ 2,706
Commercial | Commercial and industrial | Change in Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0
Commercial | Commercial and industrial | Chapter 7 Bankruptcy |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0
Commercial | Commercial and industrial | Other |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0
Commercial | SBA |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 2 | 1 | 0
Pre- Modification Outstanding Recorded Investment | $ 3,214 | $ 187 | $ 0
Post-Modification Outstanding Recorded Investment | $ 869 | $ 187 | $ 0
Commercial | SBA | Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 2 |  |
Post-Modification Outstanding Recorded Investment | $ 869 |  |
Commercial | SBA | Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  |
Post-Modification Outstanding Recorded Investment | $ 0 |  |
Commercial | SBA | Change in Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  |
Post-Modification Outstanding Recorded Investment | $ 0 |  |
Commercial | SBA | Chapter 7 Bankruptcy |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  |
Post-Modification Outstanding Recorded Investment | $ 0 |  |
Commercial | SBA | Other |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  |
Post-Modification Outstanding Recorded Investment | $ 0 |  |
Commercial | Single family residential mortgage |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 1 |
Post-Modification Outstanding Recorded Investment |  | $ 187 |
Commercial | Single family residential mortgage | Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 |
Post-Modification Outstanding Recorded Investment |  | $ 0 |
Commercial | Single family residential mortgage | Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 |
Post-Modification Outstanding Recorded Investment |  | $ 0 |
Commercial | Single family residential mortgage | Change in Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 |
Post-Modification Outstanding Recorded Investment |  | $ 0 |
Commercial | Single family residential mortgage | Chapter 7 Bankruptcy |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 |
Post-Modification Outstanding Recorded Investment |  | $ 0 |
Commercial | Single family residential mortgage | Other |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 1 |
Post-Modification Outstanding Recorded Investment |  | $ 187 |
Consumer | Single family residential mortgage |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 3
Pre- Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 2,416
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 2,433
Consumer | Single family residential mortgage | Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  | 2
Post-Modification Outstanding Recorded Investment | $ 0 |  | $ 1,290
Consumer | Single family residential mortgage | Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  | 1
Post-Modification Outstanding Recorded Investment | $ 0 |  | $ 1,143
Consumer | Single family residential mortgage | Change in Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  | 0
Post-Modification Outstanding Recorded Investment | $ 0 |  | $ 0
Consumer | Single family residential mortgage | Chapter 7 Bankruptcy |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  | 0
Post-Modification Outstanding Recorded Investment | $ 0 |  | $ 0
Consumer | Single family residential mortgage | Other |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  | 0
Post-Modification Outstanding Recorded Investment | $ 0 |  | $ 0

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