Investment Securities-Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	$ 58,957	$ 60,735
Available-for-sale, Gross Unrealized Gains	8	4
Available-for-sale, Gross Unrealized Losses	(10,854)	(12,709)
Available-for-sale	48,111	48,030
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	1,863	2,008
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(47)	(103)
Held-to-maturity, Fair Value	1,816	1,905
Government National Mortgage Association (GNMA)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	213	280
Available-for-sale, Gross Unrealized Gains	4	4
Available-for-sale, Gross Unrealized Losses	0	(1)
Available-for-sale	217	283
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	263	292
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(2)	(9)
Held-to-maturity, Fair Value	261	283
Federal Home Loan Mortgage Corporation (FHLMC)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	19,451	20,299
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(3,850)	(4,501)
Available-for-sale	15,601	15,798
Federal National Mortgage Association (FNMA)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	10,586	10,975
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(1,913)	(2,339)
Available-for-sale	8,673	8,636
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	1,600	1,716
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	(45)	(94)
Held-to-maturity, Fair Value	1,555	1,622
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	30,250	31,554
Available-for-sale, Gross Unrealized Gains	4	4
Available-for-sale, Gross Unrealized Losses	(5,763)	(6,841)
Available-for-sale	24,491	24,717
US Government Agency Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	5,759	6,219
Available-for-sale, Gross Unrealized Gains	4	0
Available-for-sale, Gross Unrealized Losses	(9)	(25)
Available-for-sale	5,754	6,194
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	5,264	5,266
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(2,084)	(2,203)
Available-for-sale	3,180	3,063
Municipal Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	17,684	17,696
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	(2,998)	(3,640)
Available-for-sale	$ 14,686	$ 14,056

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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