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DERIVATIVES - Additional Information (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 USD ($) Derivative | Mar. 31, 2022 USD ($) Contract | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) Derivative | Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Derivative [Line Items] |  |  |  |  |  |
Unrealized gain |  |  |  | $ 35,000 |  |
Net interest income | $ 42,893,000 |  | $ 33,845,000 | 82,515,000 | $ 65,638,000 |
Swap valuation allowance |  |  |  | 673,000 |  |
Accrued interest receivable | 23,468,000 |  |  | 23,468,000 |  | $ 21,589,000
Not Designated as Hedging Instrument [Member] | Commercial Real Estate Loan [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Swap valuation provision placed on non-accrual status |  |  |  |  |  | 2,100,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount | $ 240,000,000.0 |  |  | $ 240,000,000.0 |  | 230,000,000.0
Derivative number of instruments deemed ineffective | Derivative | 2 |  |  | 2 |  |
Notional amount, deemed ineffective | $ 50,000,000.0 |  |  | $ 50,000,000.0 |  |
Unrealized gain |  |  |  | 437,000 |  | (3,479,000)
Net interest income | 679,000 |  | $ 1,100,000 | 1,700,000 | $ 2,300,000 |
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Other Assets [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount | 180,000,000 |  |  | 180,000,000 |  |
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Other Liabilities [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount | $ 60,000,000 |  |  | $ 60,000,000 |  | 230,000,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Forward Contracts [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount |  | $ 100,000,000.0 |  |  |  |
Derivative, maturity year |  | 2023 |  |  |  |
Derivative, maturity term |  | 5 years |  |  |  |
Weighted-average fixed pay rate | 2.25% |  |  | 2.25% |  |
Number of forward contract | Contract |  | 4 |  |  |  |
Loan Level Swaps [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Notional amount | $ 642,110,000 |  |  | $ 642,110,000 |  | 702,210,000
Loan Level Swaps [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Accrued interest receivable | 2,900,000 |  |  | 2,900,000 |  | 2,900,000
Loan Level Swaps [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member] |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Accrued interest payable | $ 4,800,000 |  |  | $ 4,800,000 |  | $ 4,800,000

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