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ALLOWANCE FOR LOAN LOSSES - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	$ 943,235	$ 911,509
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	893,055	908,543
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	42,493	1,390
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	7,687	1,576
Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	884,656	824,143
Commercial Real Estate Portfolio Segment | Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	265,145	179,029
Commercial Real Estate Portfolio Segment | Commercial business | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	264,564	177,399
Commercial Real Estate Portfolio Segment | Commercial business | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	399	1,282
Commercial Real Estate Portfolio Segment | Commercial business | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	182	348
Commercial Real Estate Portfolio Segment | Commercial business | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Commercial business | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	543,467	507,871
Commercial Real Estate Portfolio Segment | Commercial real estate | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	494,010	506,794
Commercial Real Estate Portfolio Segment | Commercial real estate | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	42,045	63
Commercial Real Estate Portfolio Segment | Commercial real estate | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	7,412	1,014
Commercial Real Estate Portfolio Segment | Commercial real estate | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Commercial real estate | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	14,040	14,026
Commercial Real Estate Portfolio Segment | Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	14,040	14,026
Commercial Real Estate Portfolio Segment | Land | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Land | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Land | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Land | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	45,014	58,374
Commercial Real Estate Portfolio Segment | Multi-family | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	44,941	58,295
Commercial Real Estate Portfolio Segment | Multi-family | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	49	45
Commercial Real Estate Portfolio Segment | Multi-family | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	24	34
Commercial Real Estate Portfolio Segment | Multi-family | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Multi-family | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Real estate construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	16,990	64,843
Commercial Real Estate Portfolio Segment | Real estate construction | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	16,990	64,843
Commercial Real Estate Portfolio Segment | Real estate construction | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Real estate construction | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Real estate construction | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Commercial Real Estate Portfolio Segment | Real estate construction | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	58,579	87,366
Consumer | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	58,510	87,186
Consumer | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Consumer | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	69	180
Consumer | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	0	0
Consumer | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	$ 0	$ 0

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

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