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Investment Securities-Schedule of Unrealized Loss on Investments (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Mar. 31, 2022
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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 | $ 13 | $ 2,163
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 4,075 | 20,912
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 12,203 | 4,508
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 49,471 | 46,290
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 12,216 | 6,671
Debt Securities, Available-for-sale, Unrealized Loss Position | 53,546 | 67,202
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 3 | 14
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 363 | 2,204
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 94 | 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 1,822 | 0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss | 97 | 14
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value | 2,185 | 2,204
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 13 | 2,163
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 4,075 | 20,912
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 12,203 | 4,508
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 49,471 | 46,290
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 12,216 | 6,671
Debt Securities, Available-for-sale, Unrealized Loss Position | 53,546 | 67,202
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 | 0 | 519
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 7,057
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 6,264 | 2,946
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 27,146 | 26,128
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 6,264 | 3,465
Debt Securities, Available-for-sale, Unrealized Loss Position | 27,146 | 33,185
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 3 | 14
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 363 | 2,204
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 94 | 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 1,822 | 0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss | 97 | 14
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value | 2,185 | 2,204
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 519
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 7,057
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 6,264 | 2,946
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 27,146 | 26,128
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 6,264 | 3,465
Debt Securities, Available-for-sale, Unrealized Loss Position | 27,146 | 33,185
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 | 13 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 4,075 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 25 | 79
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 5,251 | 13,785
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 38 | 79
Debt Securities, Available-for-sale, Unrealized Loss Position | 9,326 | 13,785
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 13 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 4,075 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 25 | 79
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 5,251 | 13,785
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 38 | 79
Debt Securities, Available-for-sale, Unrealized Loss Position | 9,326 | 13,785
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 | 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 | 2,177 | 1,150
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 3,092 | 4,121
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 2,177 | 1,150
Debt Securities, Available-for-sale, Unrealized Loss Position | 3,092 | 4,121
Schedule of Held-to-maturity Securities [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 | 2,177 | 1,150
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 3,092 | 4,121
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 2,177 | 1,150
Debt Securities, Available-for-sale, Unrealized Loss Position | 3,092 | 4,121
Municipal Bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 1,640
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 13,512
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 3,737 | 333
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 13,982 | 2,256
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 3,737 | 1,973
Debt Securities, Available-for-sale, Unrealized Loss Position | 13,982 | 15,768
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 1,640
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 13,512
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 3,737 | 333
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 13,982 | 2,256
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 3,737 | 1,973
Debt Securities, Available-for-sale, Unrealized Loss Position | $ 13,982 | 15,768
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
Schedule of Held-to-maturity Securities [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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