LOANS RECEIVABLE - Summary of impaired loans by class of loan (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Dec. 31, 2022
With no related allowance recorded:
Unpaid Principal Balance	$ 12,239	$ 10,770
Recorded Investment	12,362	10,908
Average Recorded Investment	13,687
Interest Income Recognized	180
Cash Basis Interest Recognized	164
With an allowance recorded:
Unpaid Principal Balance	1,122	743
Recorded Investment	1,125	749
Allowance for Loan Losses Allocated	30	27
Average Recorded Investment	743
Interest Income Recognized	23
Cash Basis Interest Recognized	20
Total
Unpaid Principal Balance	13,361	11,513
Recorded Investment	13,487	11,657
Allowance for Loan Losses Allocated	30	27
Average Recorded Investment	14,430
Interest Income Recognized	203
Cash Basis Interest Recognized	184
Residential Portfolio Segment \| Residential one-to-four family
With no related allowance recorded:
Unpaid Principal Balance	7,771	7,368
Recorded Investment	8,054	7,669
Average Recorded Investment	8,686
Interest Income Recognized	61
Cash Basis Interest Recognized	58
With an allowance recorded:
Unpaid Principal Balance	1,122	743
Recorded Investment	1,125	749
Allowance for Loan Losses Allocated	30	27
Average Recorded Investment	743
Interest Income Recognized	23
Cash Basis Interest Recognized	20
Total
Allowance for Loan Losses Allocated	30	27
Residential Portfolio Segment \| Multifamily
With no related allowance recorded:
Unpaid Principal Balance	659	516
Recorded Investment	659	516
Average Recorded Investment	671
Interest Income Recognized	13
Cash Basis Interest Recognized	10
Nonresidential Portfolio Segment \| Non-residential
With no related allowance recorded:
Unpaid Principal Balance	3,755	2,834
Recorded Investment	3,595	2,671
Average Recorded Investment	4,275
Interest Income Recognized	105
Cash Basis Interest Recognized	95
Junior Lien Portfolio Segment \| Junior liens
With no related allowance recorded:
Unpaid Principal Balance	54	52
Recorded Investment	54	$ 52
Average Recorded Investment	55
Interest Income Recognized	1
Cash Basis Interest Recognized	$ 1

Impaired Financing Receivable, No Related Allowance

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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