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Loans Receivable and ACL Text Tags (Details) | 6 Months Ended |
--- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Mar. 31, 2025 USD ($)
Loans and Leases Receivable Disclosure [Abstract] |  |  |
Unamortized premiums, deferred costs and fees, net | $ (2,400,000) |  | $ (2,600,000)
Financing Receivable, Nonaccrual, Interest Income | 0 |  |
Other Real Estate Owned | $ 52,000 |  | $ 52,000
Number of Real Estate Properties | 1 |  | 1
Financing Receivable, Held-for-Sale | $ 0 |  | $ 0
Financing Receivable, Modified, Subsequent Default | 0 | $ 0 |
Financing Receivable, Modified in Period, Amount | 0 | $ 0 |
Loans and Leases Receivable, Related Parties | 0 |  |
Financing Receivable, Modified [Line Items] |  |  |
Financing Receivable, Modified, Accumulated | 1,400,000 |  |
Nonperforming |  |  |
Financing Receivable, Modified [Line Items] |  |  |
Financing Receivable, Modified, Accumulated | 412,000 |  |
Performing |  |  |
Financing Receivable, Modified [Line Items] |  |  |
Financing Receivable, Modified, Accumulated | $ 900,000 |  |

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