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Investment Securities-Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	$ 57,118	$ 60,735
Available-for-sale, Gross Unrealized Gains	4	4
Available-for-sale, Gross Unrealized Losses	(13,001)	(12,709)
Available-for-sale	44,121	48,030
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	1,807	2,008
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(72)	(103)
Held-to-maturity, Fair Value	1,735	1,905
Government National Mortgage Association (GNMA)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	211	280
Available-for-sale, Gross Unrealized Gains	4	4
Available-for-sale, Gross Unrealized Losses	0	(1)
Available-for-sale	215	283
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	254	292
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(12)	(9)
Held-to-maturity, Fair Value	242	283
Federal Home Loan Mortgage Corporation (FHLMC)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	19,115	20,299
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(4,383)	(4,501)
Available-for-sale	14,732	15,798
Federal National Mortgage Association (FNMA)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	10,390	10,975
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(2,340)	(2,339)
Available-for-sale	8,050	8,636
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	1,553	1,716
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(60)	(94)
Held-to-maturity, Fair Value	1,493	1,622
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	29,716	31,554
Available-for-sale, Gross Unrealized Gains	4	4
Available-for-sale, Gross Unrealized Losses	(6,723)	(6,841)
Available-for-sale	22,997	24,717
US Government Agency Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	4,460	6,219
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(22)	(25)
Available-for-sale	4,438	6,194
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	5,263	5,266
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(2,446)	(2,203)
Available-for-sale	2,817	3,063
Municipal Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	17,679	17,696
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(3,810)	(3,640)
Available-for-sale	$ 13,869	$ 14,056

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