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Investment Securities-Investments Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Mar. 31, 2024
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Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity |  |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost | $ 1,678 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost | 4,680 |
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost | 22,611 |
Debt Securities, Available-for-sale, Amortized Cost | 59,913 | $ 60,735
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity |  |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value | 1,669 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value | 3,984 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value | 17,203 |
Available-for-sale | $ 46,945 | 48,030
Available-for-Sale Securities, Debt Maturities, Weighted Average Yield |  |
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Rate | 6.58% |
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate | 2.44% |
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Rate | 3.39% |
Available-for-sale Securities, Debt Maturities, Weighted Average Rate | 2.52% |
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount |  |
Held-to-maturity | $ 1,940 | 2,008
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity |  |
Held-to-maturity, Fair Value | $ 1,839 | $ 1,905

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