LOANS AND ACL - Risk category of bank loans by year of origination (Details) $ in Thousands	12 Months Ended
Mar. 31, 2024 USD ($)
Origination year
2024	$ 68,625
2023	169,408
2022	338,864
2021	126,861
2020	84,175
Prior	215,697
Revolving Loans	20,383
Total Loans Receivable	1,024,013
Gross write-offs
2023	11
Prior	2
Total Loans Receivable	13
Other installment
Gross write-offs
Total Loans Receivable	13
Commercial and Industrial \| Commercial Business
Origination year
Total Loans Receivable	229,404
Commercial Real Estate Portfolio Segment
Origination year
Total Loans Receivable	925,907
Commercial Real Estate Portfolio Segment \| Commercial Business
Origination year
2024	14,126
2023	63,838
2022	85,864
2021	28,119
2020	17,431
Prior	12,701
Revolving Loans	7,325
Total Loans Receivable	229,404
Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Origination year
2024	36,636
2023	70,599
2022	147,912
2021	89,662
2020	53,424
Prior	185,268
Total Loans Receivable	583,501
Commercial Real Estate Portfolio Segment \| Land
Origination year
2024	2,361
2023	2,695
2022	94
2020	106
Prior	437
Total Loans Receivable	5,693
Commercial Real Estate Portfolio Segment \| Multi-Family
Origination year
2024	970
2023	21,643
2022	32,003
2021	4,841
2020	8,823
Prior	2,491
Total Loans Receivable	70,771
Commercial Real Estate Portfolio Segment \| Real Estate Construction
Origination year
2024	14,114
2023	10,078
2022	12,346
Total Loans Receivable	36,538
Consumer
Origination year
Total Loans Receivable	98,106
Gross write-offs
Total Loans Receivable	13
Consumer \| Real estate one-to-four family
Origination year
2022	60,447
2021	4,164
2020	4,364
Prior	14,792
Revolving Loans	12,599
Total Loans Receivable	96,366
Consumer \| Other installment
Origination year
2024	418
2023	555
2022	198
2021	75
2020	27
Prior	8
Revolving Loans	459
Total Loans Receivable	1,740
Gross write-offs
2023	11
Prior	2
Total Loans Receivable	13
Pass
Origination year
2024	67,311
2023	165,301
2022	337,234
2021	126,861
2020	83,654
Prior	188,352
Revolving Loans	17,885
Total Loans Receivable	986,598
Pass \| Commercial Real Estate Portfolio Segment \| Commercial Business
Origination year
2024	14,126
2023	63,838
2022	85,131
2021	28,119
2020	16,945
Prior	12,411
Revolving Loans	4,827
Total Loans Receivable	225,397
Pass \| Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Origination year
2024	36,116
2023	66,847
2022	147,015
2021	89,662
2020	53,424
Prior	158,311
Total Loans Receivable	551,375
Pass \| Commercial Real Estate Portfolio Segment \| Land
Origination year
2024	2,361
2023	2,340
2022	94
2020	106
Prior	437
Total Loans Receivable	5,338
Pass \| Commercial Real Estate Portfolio Segment \| Multi-Family
Origination year
2024	970
2023	21,643
2022	32,003
2021	4,841
2020	8,788
Prior	2,429
Total Loans Receivable	70,674
Pass \| Commercial Real Estate Portfolio Segment \| Real Estate Construction
Origination year
2024	13,320
2023	10,078
2022	12,346
Total Loans Receivable	35,744
Pass \| Consumer \| Real estate one-to-four family
Origination year
2022	60,447
2021	4,164
2020	4,364
Prior	14,756
Revolving Loans	12,599
Total Loans Receivable	96,330
Pass \| Consumer \| Other installment
Origination year
2024	418
2023	555
2022	198
2021	75
2020	27
Prior	8
Revolving Loans	459
Total Loans Receivable	1,740
Special Mention
Origination year
2024	794
2023	4,107
2022	1,630
2020	521
Prior	27,142
Revolving Loans	2,498
Total Loans Receivable	36,692
Special Mention \| Commercial Real Estate Portfolio Segment \| Commercial Business
Origination year
2022	733
2020	486
Prior	232
Revolving Loans	2,498
Total Loans Receivable	3,949
Special Mention \| Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Origination year
2023	3,752
2022	897
Prior	26,878
Total Loans Receivable	31,527
Special Mention \| Commercial Real Estate Portfolio Segment \| Land
Origination year
2023	355
Total Loans Receivable	355
Special Mention \| Commercial Real Estate Portfolio Segment \| Multi-Family
Origination year
2020	35
Prior	32
Total Loans Receivable	67
Special Mention \| Commercial Real Estate Portfolio Segment \| Real Estate Construction
Origination year
2024	794
Total Loans Receivable	794
Substandard
Origination year
2024	520
Prior	203
Total Loans Receivable	723
Substandard \| Commercial Real Estate Portfolio Segment \| Commercial Business
Origination year
Prior	58
Total Loans Receivable	58
Substandard \| Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Origination year
2024	520
Prior	79
Total Loans Receivable	599
Substandard \| Commercial Real Estate Portfolio Segment \| Multi-Family
Origination year
Prior	30
Total Loans Receivable	30
Substandard \| Consumer \| Real estate one-to-four family
Origination year
Prior	36
Total Loans Receivable	$ 36

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

Reference 1: 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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

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

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease.

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