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DERIVATIVES - Additional Information (Details)	3 Months Ended		12 Months Ended
DERIVATIVES - Additional Information (Details)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($) Contract	Dec. 31, 2022 USD ($)
Derivative [Line Items]
Number of forward contract \| Contract		4
Unrealized gain	$ 2,000,000.0
Net interest income (expense)	43,978,000	$ 39,622,000
Swap valuation allowance		673,000
Accrued interest receivable	19,143,000		$ 25,157,000
Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount	210,000,000.0		290,000,000.0
Unrealized after-tax gain of accumulated other comprehensive income (loss)		167,000
Unrealized gain	4,500,000		3,290,000
Net interest income (expense)	947,000	(999,000)
Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member] \| Other Assets [Member]
Derivative [Line Items]
Notional amount	$ 210,000,000		290,000,000
Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member] \| Forward Contracts [Member]
Derivative [Line Items]
Notional amount		$ 100,000,000.0
Weighted-average fixed pay rate	3.12%
Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member] \| Forward Contracts [Member] \| Minimum [Member]
Derivative [Line Items]
Derivative, maturity term	2 years
Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member] \| Forward Contracts [Member] \| Maximum [Member]
Derivative [Line Items]
Derivative, maturity term	5 years
Loan Level Swaps [Member] \| Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount	$ 607,365,000		612,211,000
Loan Level Swaps [Member] \| Not Designated as Hedging Instrument [Member] \| Other Liabilities [Member]
Derivative [Line Items]
Accrued interest payable	$ 798,000		$ 1,100,000