LOANS AND ALLOWANCE FOR CREDIT LOSSES FOR LOANS - Risk category of bank loans by year of origination (Details) $ in Thousands	3 Months Ended	9 Months Ended
Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Origination year
2024	$ 53,016	$ 53,016
2023	165,667	165,667
2022	342,046	342,046
2021	131,765	131,765
2020	85,308	85,308
Prior	222,888	222,888
Revolving Loans	17,509	17,509
Total Loans Receivable	1,018,199	1,018,199
Gross write-offs
2023		11
Prior		2
Total Loans Receivable	2	13
Commercial Real Estate Portfolio Segment
Origination year
Total Loans Receivable	920,198	920,198
Commercial Real Estate Portfolio Segment \| Commercial Business
Origination year
2024	10,078	10,078
2023	63,837	63,837
2022	88,204	88,204
2021	30,264	30,264
2020	17,851	17,851
Prior	13,387	13,387
Revolving Loans	5,628	5,628
Total Loans Receivable	229,249	229,249
Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Origination year
2024	24,867	24,867
2023	63,814	63,814
2022	149,196	149,196
2021	90,346	90,346
2020	53,902	53,902
Prior	190,950	190,950
Total Loans Receivable	573,075	573,075
Commercial Real Estate Portfolio Segment \| Land
Origination year
2024	3,501	3,501
2023	2,718	2,718
2022	98	98
2021	1,809	1,809
2020	110	110
Prior	454	454
Total Loans Receivable	8,690	8,690
Commercial Real Estate Portfolio Segment \| Multi-Family
Origination year
2024	684	684
2023	17,150	17,150
2022	32,221	32,221
2021	5,066	5,066
2020	9,000	9,000
Prior	2,896	2,896
Total Loans Receivable	67,017	67,017
Commercial Real Estate Portfolio Segment \| Real Estate Construction
Origination year
2024	13,575	13,575
2023	17,536	17,536
2022	11,056	11,056
Total Loans Receivable	42,167	42,167
Consumer
Origination year
Total Loans Receivable	98,001	98,001
Gross write-offs
Total Loans Receivable	2	13
Consumer \| Real estate one-to-four family
Origination year
2022	61,048	61,048
2021	4,194	4,194
2020	4,411	4,411
Prior	15,183	15,183
Revolving Loans	11,430	11,430
Total Loans Receivable	96,266	96,266
Consumer \| Other installment
Origination year
2024	311	311
2023	612	612
2022	223	223
2021	86	86
2020	34	34
Prior	18	18
Revolving Loans	451	451
Total Loans Receivable	1,735	1,735
Gross write-offs
2023		11
Prior		2
Total Loans Receivable		13
Pass
Origination year
2024	52,246	52,246
2023	161,279	161,279
2022	340,370	340,370
2021	131,765	131,765
2020	84,721	84,721
Prior	195,380	195,380
Revolving Loans	15,012	15,012
Total Loans Receivable	980,773	980,773
Pass \| Commercial Real Estate Portfolio Segment \| Commercial Business
Origination year
2024	10,078	10,078
2023	63,586	63,586
2022	87,431	87,431
2021	30,264	30,264
2020	17,299	17,299
Prior	13,038	13,038
Revolving Loans	3,131	3,131
Total Loans Receivable	224,827	224,827
Pass \| Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Origination year
2024	24,867	24,867
2023	60,034	60,034
2022	148,293	148,293
2021	90,346	90,346
2020	53,902	53,902
Prior	163,891	163,891
Total Loans Receivable	541,333	541,333
Pass \| Commercial Real Estate Portfolio Segment \| Land
Origination year
2024	3,501	3,501
2023	2,361	2,361
2022	98	98
2021	1,809	1,809
2020	110	110
Prior	454	454
Total Loans Receivable	8,333	8,333
Pass \| Commercial Real Estate Portfolio Segment \| Multi-Family
Origination year
2024	684	684
2023	17,150	17,150
2022	32,221	32,221
2021	5,066	5,066
2020	8,965	8,965
Prior	2,834	2,834
Total Loans Receivable	66,920	66,920
Pass \| Commercial Real Estate Portfolio Segment \| Real Estate Construction
Origination year
2024	12,805	12,805
2023	17,536	17,536
2022	11,056	11,056
Total Loans Receivable	41,397	41,397
Pass \| Consumer \| Real estate one-to-four family
Origination year
2022	61,048	61,048
2021	4,194	4,194
2020	4,411	4,411
Prior	15,145	15,145
Revolving Loans	11,430	11,430
Total Loans Receivable	96,228	96,228
Pass \| Consumer \| Other installment
Origination year
2024	311	311
2023	612	612
2022	223	223
2021	86	86
2020	34	34
Prior	18	18
Revolving Loans	451	451
Total Loans Receivable	1,735	1,735
Special Mention
Origination year
2024	770	770
2023	4,388	4,388
2022	1,676	1,676
2020	587	587
Prior	27,293	27,293
Revolving Loans	2,497	2,497
Total Loans Receivable	37,211	37,211
Special Mention \| Commercial Real Estate Portfolio Segment \| Commercial Business
Origination year
2023	251	251
2022	773	773
2020	552	552
Prior	286	286
Revolving Loans	2,497	2,497
Total Loans Receivable	4,359	4,359
Special Mention \| Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Origination year
2023	3,780	3,780
2022	903	903
Prior	26,975	26,975
Total Loans Receivable	31,658	31,658
Special Mention \| Commercial Real Estate Portfolio Segment \| Land
Origination year
2023	357	357
Total Loans Receivable	357	357
Special Mention \| Commercial Real Estate Portfolio Segment \| Multi-Family
Origination year
2020	35	35
Prior	32	32
Total Loans Receivable	67	67
Special Mention \| Commercial Real Estate Portfolio Segment \| Real Estate Construction
Origination year
2024	770	770
Total Loans Receivable	770	770
Substandard
Origination year
Prior	215	215
Total Loans Receivable	215	215
Substandard \| Commercial Real Estate Portfolio Segment \| Commercial Business
Origination year
Prior	63	63
Total Loans Receivable	63	63
Substandard \| Commercial Real Estate Portfolio Segment \| Commercial Real Estate
Origination year
Prior	84	84
Total Loans Receivable	84	84
Substandard \| Commercial Real Estate Portfolio Segment \| Multi-Family
Origination year
Prior	30	30
Total Loans Receivable	30	30
Substandard \| Consumer \| Real estate one-to-four family
Origination year
Prior	38	38
Total Loans Receivable	$ 38	$ 38

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

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-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
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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
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-Section 45
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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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.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
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-Topic 326
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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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