ALLOWANCE FOR LOAN LOSSES - Reconciliation of the allowance for loan losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of the allowance for loan losses
Beginning balance	$ 14,552	$ 16,500	$ 14,523	$ 19,178
Provision for (recapture of) loan losses		(1,275)		(3,975)
Charge-offs		(63)	(16)	(76)
Recoveries	6	11	51	46
Ending balance	14,558	15,173	14,558	15,173
Commercial Real Estate Portfolio Segment \| Commercial Business
Reconciliation of the allowance for loan losses
Beginning balance	2,789	2,261	2,422	2,416
Provision for (recapture of) loan losses	101	381	468	226
Charge-offs		(62)		(62)
Ending balance	2,890	2,580	2,890	2,580
Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Reconciliation of the allowance for loan losses
Beginning balance	8,230	11,795	9,037	14,089
Provision for (recapture of) loan losses	(254)	(2,178)	(1,061)	(4,472)
Ending balance	7,976	9,617	7,976	9,617
Commercial Real Estate Portfolio Segment \| Land
Reconciliation of the allowance for loan losses
Beginning balance	124	232	168	233
Provision for (recapture of) loan losses	(26)	(66)	(70)	(67)
Ending balance	98	166	98	166
Commercial Real Estate Portfolio Segment \| Multi-Family
Reconciliation of the allowance for loan losses
Beginning balance	856	530	845	638
Provision for (recapture of) loan losses	(41)	207	(30)	99
Ending balance	815	737	815	737
Commercial Real Estate Portfolio Segment \| Real Estate Construction
Reconciliation of the allowance for loan losses
Beginning balance	638	231	393	294
Provision for (recapture of) loan losses	206	71	451	8
Ending balance	844	302	844	302
Consumer
Reconciliation of the allowance for loan losses
Beginning balance	1,225	841	943	852
Provision for (recapture of) loan losses	(42)	148	211	115
Charge-offs		(1)	(16)	(14)
Recoveries	6	11	51	46
Ending balance	1,189	999	1,189	999
Unallocated
Reconciliation of the allowance for loan losses
Beginning balance	690	610	715	656
Provision for (recapture of) loan losses	56	162	31	116
Ending balance	$ 746	$ 772	$ 746	$ 772

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(4)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Topic 310
-SubTopic 10
-Section S99
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Amount of expense related to estimated loss from loan and lease transactions.

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