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Investment Securities-Schedule of Unrealized Loss on Investments (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Mar. 31, 2021
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Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 2,163 | $ 3,217
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 20,912 | 60,110
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 4,508 | 113
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 46,290 | 18,631
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 6,671 | 3,330
Debt Securities, Available-for-sale, Unrealized Loss Position | 67,202 | 78,741
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 14 |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 2,204 |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 0 |
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss | 14 |
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value | 2,204 |
Mortgage-Backed Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 519 | 1,271
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 7,057 | 39,020
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 2,946 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 26,128 | 0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 3,465 | 1,271
Debt Securities, Available-for-sale, Unrealized Loss Position | 33,185 | 39,020
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 14 |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 2,204 |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 0 |
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss | 14 |
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value | 2,204 |
US Government Agency Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 79 | 113
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 13,785 | 18,631
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 79 | 113
Debt Securities, Available-for-sale, Unrealized Loss Position | 13,785 | 18,631
Corporate Bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 793
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 4,481
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 1,150 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 4,121 | 0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 1,150 | 793
Debt Securities, Available-for-sale, Unrealized Loss Position | 4,121 | 4,481
Municipal Bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 1,640 | 1,153
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 13,512 | 16,609
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 333 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 2,256 | 0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 1,973 | 1,153
Debt Securities, Available-for-sale, Unrealized Loss Position | 15,768 | $ 16,609
Asset-backed Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 4 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 343 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 4 |
Debt Securities, Available-for-sale, Unrealized Loss Position | $ 343 |

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