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Fair Value Measurements-Assets Measured on Recurring basis (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Mar. 31, 2021
--- | --- | ---
Fair Value, Inputs, Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage servicing rights | $ 0 | $ 0
Securities available-for-sale | 0 | 0
Fair Value, Inputs, Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage servicing rights | 0 | 0
Securities available-for-sale | 67,596 | 86,507
Fair Value, Inputs, Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage servicing rights | 162 | 147
Securities available-for-sale | 0 | 0
Fair Value, Measurements, Recurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage servicing rights | 162 | 147
Securities available-for-sale | 67,596 | 86,507
Assets, Fair Value Disclosure | 67,758 | 86,654
Fair Value, Measurements, Recurring | Government National Mortgage Association (GNMA) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 448 | 1,026
Fair Value, Measurements, Recurring | Federal Home Loan Mortgage Corporation (FHLMC) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 21,547 | 27,785
Fair Value, Measurements, Recurring | Federal National Mortgage Association (FNMA) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 11,584 | 14,610
Fair Value, Measurements, Recurring | US Government Agency Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 13,785 | 18,631
Fair Value, Measurements, Recurring | Corporate Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 4,121 | 4,481
Fair Value, Measurements, Recurring | Municipal Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 15,768 | 16,610
Fair Value, Measurements, Recurring | Asset-backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 343 | 3,364
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage servicing rights | 0 | 0
Securities available-for-sale | 0 | 0
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Government National Mortgage Association (GNMA) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Federal Home Loan Mortgage Corporation (FHLMC) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Federal National Mortgage Association (FNMA) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | US Government Agency Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Corporate Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Municipal Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Asset-backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage servicing rights | 0 | 0
Securities available-for-sale | 67,596 | 86,507
Assets, Fair Value Disclosure | 67,596 | 86,507
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Government National Mortgage Association (GNMA) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 448 | 1,026
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Federal Home Loan Mortgage Corporation (FHLMC) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 21,547 | 27,785
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Federal National Mortgage Association (FNMA) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 11,584 | 14,610
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | US Government Agency Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 13,785 | 18,631
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Corporate Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 4,121 | 4,481
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Municipal Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 15,768 | 16,610
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Asset-backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 343 | 3,364
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 0 | 0
Assets, Fair Value Disclosure | 162 | 147
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Government National Mortgage Association (GNMA) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Federal Home Loan Mortgage Corporation (FHLMC) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Federal National Mortgage Association (FNMA) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | US Government Agency Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Corporate Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Municipal Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Asset-backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities available-for-sale | $ 0 | $ 0

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + 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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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale. + References No definition available. + Details
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- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 + Details
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