LOANS AND ACL - Reconciliation of the allowance for loan losses (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Mar. 31, 2026
Reconciliation of the allowance for loan losses
Beginning balance	$ 15,248	$ 15,374	$ 15,374
Charge-offs			(1,356)
Recoveries	88	52
Ending balance	15,336	15,426	15,248
Commercial and Construction \| Commercial Business
Reconciliation of the allowance for loan losses
Beginning balance	4,587	5,033	5,033
(Recapture of) provision for credit losses	(211)	(174)
Charge-offs			(399)
Ending balance	4,376	4,859	4,587
Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Reconciliation of the allowance for loan losses
Beginning balance	7,527	7,492	7,492
(Recapture of) provision for credit losses	(230)	158
Charge-offs			(911)
Ending balance	7,297	7,650	7,527
Commercial Real Estate Portfolio Segment \| Land
Reconciliation of the allowance for loan losses
Beginning balance	192	83	83
(Recapture of) provision for credit losses	304	(11)
Ending balance	496	72	192
Commercial Real Estate Portfolio Segment \| Multi-Family
Reconciliation of the allowance for loan losses
Beginning balance	468	444	444
(Recapture of) provision for credit losses	103	(4)
Ending balance	571	440	468
Commercial Real Estate Portfolio Segment \| Real Estate Construction
Reconciliation of the allowance for loan losses
Beginning balance	432	480	480
(Recapture of) provision for credit losses	172	(147)
Ending balance	604	333	432
Consumer
Reconciliation of the allowance for loan losses
Beginning balance	2,042	1,842	1,842
(Recapture of) provision for credit losses	(138)	178
Recoveries	88	52
Ending balance	$ 1,992	$ 2,072	$ 2,042

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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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.

+ References

No definition available.

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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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