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Fair Value of Financial Instruments - Summary of Financial Assets Measured at Fair Value on a Recurring Basis are Available-for-Sale Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Mar. 31, 2025
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | $ 59,670 | $ 59,369
Municipal Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | 7,498 | 7,246
Fair Value, Recurring | Estimated Fair Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | 59,670 | 59,369
Fair Value, Recurring | Estimated Fair Value | Mortgage Backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | 52,172 | 52,123
Fair Value, Recurring | Estimated Fair Value | Municipal Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | 7,498 | 7,246
Fair Value, Recurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | 59,700 | 59,400
Fair Value, Recurring | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | 59,670 | 59,369
Fair Value, Recurring | Level 2 | Mortgage Backed Securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | 52,172 | 52,123
Fair Value, Recurring | Level 2 | Municipal Bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Securities Available-for-sale | $ 7,498 | $ 7,246

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