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LOANS AND CREDIT QUALITY - TDR Re-defaults (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 USD ($) loan | Jun. 30, 2020 USD ($) loan | Jun. 30, 2021 USD ($) loan | Jun. 30, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of TDR loan relationships that re-defaulted | loan | 1 | 4 | 6 | 10
Recorded investment | $ | $ 123 | $ 918 | $ 2,020 | $ 2,199
Consumer loans |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of TDR loan relationships that re-defaulted | loan |  |  | 5 | 10
Recorded investment | $ |  |  | $ 1,342 | $ 2,199
Consumer loans | Single family |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of TDR loan relationships that re-defaulted | loan | 1 | 4 | 5 | 10
Recorded investment | $ | $ 123 | $ 918 | $ 1,342 | $ 2,199
Commercial loans | Commercial and Industrial Sector |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of TDR loan relationships that re-defaulted | loan |  |  | 1 | 0
Recorded investment | $ |  |  | $ 678 | $ 0
Commercial loans | Owner occupied commercial real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of TDR loan relationships that re-defaulted | loan |  |  | 1 | 0
Recorded investment | $ |  |  | $ 678 | $ 0

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