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Summary of Significant Accounting Policies Text Tags (Details) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Mar. 31, 2003 | Mar. 31, 2024 | Mar. 31, 2023
Accounting Policies [Abstract] |  |  |  |  |
Proceeds from Issuance of Long-term Debt | $ 1,814,000 | $ 0 | $ 13,000,000 |  |
Proceeds from (Payments for) Other Financing Activities |  |  | $ 400,000 |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Retained Earnings (Accumulated Deficit) | (53,761,000) |  |  | $ (51,549,000) |
Allowance for Credit Loss, Excluding Accrued Interest | 5,955,000 | 5,858,000 |  | $ 5,871,000 | $ 5,229,000
Proceeds from Sale of Held-to-Maturity Securities | $ 0 | 0 |  |  |
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Retained Earnings (Accumulated Deficit) |  | (668,000) |  |  |
Allowance for Credit Loss, Excluding Accrued Interest |  | $ 668,000 |  |  |

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