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Summary of Significant Accounting Policies Text Tag (Details) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($)
Accounting Policies [Abstract] |  |
Other than Temporary Impairment Losses, Investments | $ 0 |
Number of Reportable Segments | 1 |
Property, Plant and Equipment [Line Items] |  |
Servicing fee income | $ 44 | $ 41
Mortgage Loans in Process of Foreclosure, Amount | $ 3,200 | $ 3,100
Minimum | Buildings and improvements |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Useful Life | 10 years |
Minimum | Furnishings and equipment |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Useful Life | 3 years |
Maximum | Buildings and improvements |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Useful Life | 25 years |
Maximum | Furnishings and equipment |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Useful Life | 5 years |

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- Definition Amount of fee income including, but not limited to, managerial assistance, servicing of investment, and origination and commitment fees. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(1)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 + Details
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- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-8A + Details
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- Definition Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 35 -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-35 + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-18 + Details
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