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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)		3 Months Ended		12 Months Ended
	Jan. 01, 2021	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans receivable, allowance for credit losses		$ 64,987,000		$ 63,480,000
TDR loans evaluated on individual	$ 100,000
Interest income		0	$ 0
Non-accrual loans for no related allowance amortized cost		1,700,000
Minimum loan balance required for collateral-dependent loans		100,000
Provision expense on its portfolio of outstanding loans		1,500,000
Provision for loan losses		$ 1,500,000	0
Loan modifications				2,949,000
Troubled debt restructurings internal grading system substandard				$ 1,700,000
Troubled debt restructurings returned to accrual status			221,000
Maximum percentage of concessions granted of their respective classes of loan portfolios		2.50%
Allowance for unfunded commitment
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Provision for loan losses		$ (826,000)	$ (193,000)

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Percentage of maximum of concession granted for respective classes of loan portfolios.

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Amount of minimum loan balance which are identified primarily by a classified risk rating required for collateral dependent loans including, but not limited to any loan in process of foreclosure or repossession.

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Amount of non-accrual loans for credit losses amortized cost.

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Amount of expense related to estimated loss from loan and lease transactions.

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Amount of troubled debt restructuring loan evaluated on individual.

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Amount of troubled debt Restructurings Internal Grading System.

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Represents the monetary amount of Troubled Debt Restructurings Returned to Accrual Status, during the indicated time period.

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Amount of financing receivable modified as troubled debt restructuring.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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