Investment Securities-Schedule of Unrealized Loss (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025
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	$ (1)	$ (11)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	2,285	3,467
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(11,837)	(11,947)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	40,181	40,846
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(11,838)	(11,958)
Debt Securities, Available-for-sale, Unrealized Loss Position	42,466	44,313
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	0	0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(42)	(52)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	1,634	1,670
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss	(42)	(52)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value	1,634	1,670
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	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	(6,073)	(6,147)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	22,425	22,863
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(6,073)	(6,147)
Debt Securities, Available-for-sale, Unrealized Loss Position	22,425	22,863
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	0	0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(42)	(52)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	1,634	1,670
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss	(42)	(52)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value	1,634	1,670
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	(1)	(11)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	2,285	3,467
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(3)	(5)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	589	843
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(4)	(16)
Debt Securities, Available-for-sale, Unrealized Loss Position	2,874	4,310
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	(2,470)	(2,442)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,791	2,820
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(2,470)	(2,442)
Debt Securities, Available-for-sale, Unrealized Loss Position	2,791	2,820
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	(3,291)	(3,353)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	14,376	14,320
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(3,291)	(3,353)
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 14,376	$ 14,320

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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