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ALLOWANCE FOR LOAN LOSSES - Average recorded investment in impaired loans (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Mar. 31, 2020
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment with No Specific Valuation Allowance | $ 3,329 | $ 5,075
Recorded Investment with Specific Valuation Allowance | 252 | 137
Total Recorded Investment | 3,581 | 5,212
Unpaid Principal Balance | 3,952 | 6,528
Related Specific Valuation Allowance | 11 | 12
Commercial Real Estate Portfolio Segment | Commercial business |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment with No Specific Valuation Allowance | 120 | 139
Recorded Investment with Specific Valuation Allowance | 0 | 0
Total Recorded Investment | 120 | 139
Unpaid Principal Balance | 157 | 170
Related Specific Valuation Allowance | 0 | 0
Commercial Real Estate Portfolio Segment | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment with No Specific Valuation Allowance | 1,468 | 2,378
Recorded Investment with Specific Valuation Allowance | 0 | 0
Total Recorded Investment | 1,468 | 2,378
Unpaid Principal Balance | 1,556 | 3,405
Related Specific Valuation Allowance | 0 | 0
Commercial Real Estate Portfolio Segment | Land |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment with No Specific Valuation Allowance | 710 | 714
Recorded Investment with Specific Valuation Allowance | 0 | 0
Total Recorded Investment | 710 | 714
Unpaid Principal Balance | 740 | 748
Related Specific Valuation Allowance | 0 | 0
Commercial Real Estate Portfolio Segment | Multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment with No Specific Valuation Allowance | 753 | 1,549
Recorded Investment with Specific Valuation Allowance | 0 | 0
Total Recorded Investment | 753 | 1,549
Unpaid Principal Balance | 856 | 1,662
Related Specific Valuation Allowance | 0 | 0
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded Investment with No Specific Valuation Allowance | 278 | 295
Recorded Investment with Specific Valuation Allowance | 252 | 137
Total Recorded Investment | 530 | 432
Unpaid Principal Balance | 643 | 543
Related Specific Valuation Allowance | $ 11 | $ 12

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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524 + Details
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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details
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