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DERIVATIVES AND HEDGING ACTIVITIES - Summary of interest-rate swaps designated as cash flow hedges (Details) - Interest Rate Swap - Cash Flow Hedging - Designated as Hedging Instrument - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional amounts | $ 209,000,000 | $ 109,000,000
Weighted average pay rates | 2.53% | 1.46%
Weighted average receive rates | 5.25% | 4.61%
Weighted average maturity (in years) | 3 years 9 months 18 days | 4 years 2 months 12 days
Unrealized gains, net | $ 12,450,000 | $ 11,091,000
Other Assets |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Unrealized gains, net | 12,527,000 | 11,091,000
Other Liabilities |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Unrealized gains, net | $ 77,000 | $ 0

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