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Investment Securities-Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	$ 59,913	$ 60,735
Available-for-sale, Gross Unrealized Gains	6	4
Available-for-sale, Gross Unrealized Losses	(12,974)	(12,709)
Available-for-sale	46,945	48,030
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	1,940	2,008
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(101)	(103)
Held-to-maturity, Fair Value	1,839	1,905
Government National Mortgage Association (GNMA)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	243	280
Available-for-sale, Gross Unrealized Gains	3	4
Available-for-sale, Gross Unrealized Losses	0	(1)
Available-for-sale	246	283
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	274	292
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(11)	(9)
Held-to-maturity, Fair Value	263	283
Federal Home Loan Mortgage Corporation (FHLMC)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	19,905	20,299
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(4,512)	(4,501)
Available-for-sale	15,393	15,798
Federal National Mortgage Association (FNMA)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	10,796	10,975
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(2,346)	(2,339)
Available-for-sale	8,450	8,636
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	1,666	1,716
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(90)	(94)
Held-to-maturity, Fair Value	1,576	1,622
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	30,944	31,554
Available-for-sale, Gross Unrealized Gains	3	4
Available-for-sale, Gross Unrealized Losses	(6,858)	(6,841)
Available-for-sale	24,089	24,717
US Government Agency Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	6,014	6,219
Available-for-sale, Gross Unrealized Gains	3	0
Available-for-sale, Gross Unrealized Losses	(10)	(25)
Available-for-sale	6,007	6,194
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	5,265	5,266
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(2,345)	(2,203)
Available-for-sale	2,920	3,063
Municipal Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	17,690	17,696
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(3,761)	(3,640)
Available-for-sale	$ 13,929	$ 14,056

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