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INVESTMENT SECURITIES - Additional information (Details) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Debt Securities, Available-for-sale [Line Items] |  |  |
Proceeds from the sale of investment securities | $ 0 | $ 17,800,000 | $ 0
Gross realized gains on sales of investment securities | 0 | 30,000 | $ 0
Investment securities available for sale |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Pledged as collateral at amortized cost | 5,300,000 | 6,600,000 |
Pledged as collateral at fair value | 5,400,000 | 6,800,000 |
Investment securities held to maturity |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Pledged as collateral at amortized cost | 3,100,000 | $ 0 |
Pledged as collateral at fair value | $ 3,000,000 |  |

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- Definition The amortized cost of investment securities available for sale pledged as collateral for government public funds held by the bank, as of the date indicated. + References No definition available. + Details
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- Definition Amount of unrealized and realized gain (loss) on investment in debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Definition The sum of the fair values, as of the date of each statement of financial position presented, of securities that are restricted as collateral for the payment of related debt obligations, primarily secured borrowings and repurchase agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728 + Details
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- Definition The cash inflow associated with the sale of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time). + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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