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Investment Securities-Investments Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020
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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 | $ 1,002 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost | 4,114 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost | 6,877 |
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost | 44,743 |
Debt Securities, Available-for-sale, Amortized Cost | 63,654 |
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 | 1,007 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value | 4,130 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value | 6,813 |
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value | 44,448 |
Available-for-sale | $ 63,512 | $ 65,829
Available-for-sale, Securities, Debt Maturities, within One Year, Weighted Average Rate | 1.71% |
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Rate | 3.00% |
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate | 1.35% |
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Rate | 1.83% |
Available-for-sale Securities, Debt Maturities, Weighted Average Rate | 1.94% |
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount |  |
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost | $ 1,000 |
Held-to-maturity | 9,875 | 10,151
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity |  |
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value | 1,000 |
Held-to-maturity, Fair Value | $ 10,304 | 10,564
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate | 5.75% |
Held-to-maturity Securities, Debt Maturities, Weighted Average Rate | 2.82% |
Available-for-sale Securities, Amortized Cost Basis | $ 63,654 | 64,897
Available-for-sale Securities | $ 63,512 | $ 65,829

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