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Investment Securities-Schedule of Unrealized Loss (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023
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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 | $ 3 | $ 13
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 270 | 4,075
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 13,005 | 12,203
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 51,922 | 49,471
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 13,008 | 12,216
Debt Securities, Available-for-sale, Unrealized Loss Position | 52,192 | 53,546
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 9 | 3
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 338 | 363
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 121 | 94
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 1,734 | 1,822
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss | 130 | 97
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value | 2,072 | 2,185
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 | 3 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 270 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 6,870 | 6,264
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 25,964 | 27,146
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 6,873 | 6,264
Debt Securities, Available-for-sale, Unrealized Loss Position | 26,234 | 27,146
Schedule of Held-to-maturity Securities [Line Items] |  |
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 9 | 3
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 338 | 363
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 121 | 94
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 1,734 | 1,822
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss | 130 | 97
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value | 2,072 | 2,185
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 | 0 | 13
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 0 | 4,075
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 30 | 25
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 9,082 | 5,251
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 30 | 38
Debt Securities, Available-for-sale, Unrealized Loss Position | 9,082 | 9,326
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 | 2,182 | 2,177
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 3,086 | 3,092
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 2,182 | 2,177
Debt Securities, Available-for-sale, Unrealized Loss Position | 3,086 | 3,092
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 | 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 | 3,923 | 3,737
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 13,790 | 13,982
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 3,923 | 3,737
Debt Securities, Available-for-sale, Unrealized Loss Position | $ 13,790 | $ 13,982

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