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ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Loans By Class Modified As Troubled Debt Restructuring (Details) | 12 Months Ended
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Dec. 31, 2021 USD ($) loan | Dec. 31, 2020 USD ($) loan | Dec. 31, 2019 USD ($) loan
Financing Receivable, Modifications |  |  |
Number of Loans | 8 |  | 1
Pre-Modification Outstanding Recorded Investment | $ | $ 6,066,000 |  | $ 35
Post-Modification Outstanding Recorded Investment | $ | $ 5,533,000 |  | $ 35
Number of Loans | 0 | 0 | 1,000
Extension Period or Range (in months) |  |  | 1 month
Recorded Investment | $ | $ 0 | $ 0 | $ 601,000
All Modifications |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 4 |  |
Modified Repayment Terms |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 4 |  |
Extension Period or Range (in months) |  | 0 days |
Commercial and Industrial | Working capital lines of credit loans |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans |  |  | 1
Pre-Modification Outstanding Recorded Investment | $ | $ 250,000 |  | $ 35
Post-Modification Outstanding Recorded Investment | $ | $ 315,000 |  | $ 35
Extension Period or Range (in months) |  |  | 1 month
Commercial and Industrial | Working capital lines of credit loans | All Modifications |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 1 |  |
Commercial and Industrial | Working capital lines of credit loans | Modified Repayment Terms |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 1 |  |
Extension Period or Range (in months) | 0 days |  |
Commercial and Industrial | Non-working capital loans |  |  |
Financing Receivable, Modifications |  |  |
Pre-Modification Outstanding Recorded Investment | $ | $ 4,288,000 |  |
Post-Modification Outstanding Recorded Investment | $ | $ 3,691,000 |  |
Number of Loans | 0 | 0 | 1,000
Recorded Investment | $ | $ 0 | $ 0 | $ 601,000
Commercial and Industrial | Non-working capital loans | All Modifications |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 2 |  |
Commercial and Industrial | Non-working capital loans | Modified Repayment Terms |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 2 |  |
Extension Period or Range (in months) | 0 days |  |
Commercial Real Estate and Multi-family Residential |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans |  |  | 3
Commercial Real Estate and Multi-family Residential | Owner occupied loans |  |  |
Financing Receivable, Modifications |  |  |
Pre-Modification Outstanding Recorded Investment | $ | $ 1,528,000 |  |
Post-Modification Outstanding Recorded Investment | $ | $ 1,527,000 |  |
Commercial Real Estate and Multi-family Residential | Owner occupied loans | All Modifications |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 1 |  |
Commercial Real Estate and Multi-family Residential | Owner occupied loans | Modified Repayment Terms |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 1 |  |
Extension Period or Range (in months) | 0 days |  |
Consumer 1-4 Family Mortgage |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 2 |  |
Pre-Modification Outstanding Recorded Investment | $ | $ 217,000 |  |
Post-Modification Outstanding Recorded Investment | $ | $ 217,000 |  |
Consumer 1-4 Family Mortgage | Minimum |  |  |
Financing Receivable, Modifications |  |  |
Extension Period or Range (in months) | 172 years |  |
Consumer 1-4 Family Mortgage | Maximum |  |  |
Financing Receivable, Modifications |  |  |
Extension Period or Range (in months) | 204 years |  |
Consumer 1-4 Family Mortgage | Closed end first mortgage loans |  |  |
Financing Receivable, Modifications |  |  |
Number of Loans | 2 |  |
Pre-Modification Outstanding Recorded Investment | $ | $ 217,000 |  |
Post-Modification Outstanding Recorded Investment | $ | $ 217,000 |  |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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