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LOANS AND ALLOWANCE FOR LOAN LOSSES - Troubled Debt Restructuring (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) loan | Jun. 30, 2020 USD ($) loan | Jun. 30, 2019 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of loans | loan | 12 | 12 | 1
Pre-modification outstanding recorded investment | $ 3,641 | $ 3,641 | $ 137
Post-modification outstanding recorded investment | $ 3,641 | $ 3,641 | $ 137
Commercial and agricultural | Commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of loans | loan | 2 | 2 |
Pre-modification outstanding recorded investment | $ 929 | $ 929 |
Post-modification outstanding recorded investment | $ 929 | $ 929 |
Commercial loan portfolio | Commercial mortgages, other |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of loans | loan | 4 | 4 |
Pre-modification outstanding recorded investment | $ 1,297 | $ 1,297 |
Post-modification outstanding recorded investment | $ 1,297 | $ 1,297 |
Commercial loan portfolio | Residential mortgages |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of loans | loan | 3 | 3 |
Pre-modification outstanding recorded investment | $ 677 | $ 677 |
Post-modification outstanding recorded investment | $ 677 | $ 677 |
Consumer Loans | Home equity lines and loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of loans | loan | 3 | 3 | 1
Pre-modification outstanding recorded investment | $ 738 | $ 738 | $ 137
Post-modification outstanding recorded investment | $ 738 | $ 738 | $ 137

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