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Investment Securities-Schedule of Unrealized Loss (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Mar. 31, 2022
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Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ 509 | $ 2,163
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 7,554 | 20,912
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 13,229 | 4,508
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 45,889 | 46,290
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 13,738 | 6,671
Debt Securities, Available-for-sale, Unrealized Loss Position | 53,443 | 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 | 124 | 14
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 2,246 | 2,204
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 | 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 0 | 0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss | 124 | 14
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value | 2,246 | 2,204
Mortgage-backed securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 41 | 519
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 1,225 | 7,057
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 6,838 | 2,946
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 26,123 | 26,128
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 6,879 | 3,465
Debt Securities, Available-for-sale, Unrealized Loss Position | 27,348 | 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 | 124 | 14
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 2,246 | 2,204
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 | 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 0 | 0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss | 124 | 14
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value | 2,246 | 2,204
US Government Agency Securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 12 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 4,107 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 26 | 79
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 5,715 | 13,785
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 38 | 79
Debt Securities, Available-for-sale, Unrealized Loss Position | 9,822 | 13,785
Corporate Bonds |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [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 | 2,324 | 1,150
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 2,945 | 4,121
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 2,324 | 1,150
Debt Securities, Available-for-sale, Unrealized Loss Position | 2,945 | 4,121
Municipal Securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 456 | 1,640
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 2,222 | 13,512
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 4,040 | 333
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 11,006 | 2,256
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 4,496 | 1,973
Debt Securities, Available-for-sale, Unrealized Loss Position | 13,228 | 15,768
Asset-backed Securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 4
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 343
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 1 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 100 | 0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 1 | 4
Debt Securities, Available-for-sale, Unrealized Loss Position | $ 100 | $ 343

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