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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Loans - (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 USD ($) loan borrower | Mar. 31, 2021 borrower | Dec. 31, 2021 USD ($) loan
Schedule of Available-for-sale Securities [Line Items] |  |  |
Number of TDRs accounts | 1 |  | 1
Amount of recorded investment in new troubled debt restructurings, totaled | $ | $ 36 |  | $ 36
Number of borrowers | borrower | 5 | 8 |
Consumer and Indirect |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Number of loans | loan | 1 |  |
Consumer and Indirect | Consumer Loans |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Number of loans | loan | 1 |  |
Number of borrowers | borrower | 1 |  |

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