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Investment Securities-Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Mar. 31, 2021
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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, within One Year, Amortized Cost | $ 347 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost | 0 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost | 6,929 |
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost | 29,947 |
Available-for-sale, Amortized Cost | 74,258 | $ 89,682
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity |  |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value | 343 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value | 0 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value | 6,823 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value | 26,851 |
Available-for-sale | $ 67,596 | 86,507
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract] |  |
Available-for-sale, Securities, Debt Maturities, within One Year, Weighted Average Rate | 1.06% |
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Yield | 0.00% |
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Yield | 1.92% |
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Yield | 1.96% |
Available-for-sale Securities, Debt Maturities, Weighted Average Yield | 2.19% |
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount |  |
Held-to-maturity | $ 5,254 | 7,807
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity |  |
Securities held-to-maturity | $ 5,276 | $ 8,140

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