Investment Securities-Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	$ 65,200	$ 66,058
Available-for-sale, Gross Unrealized Gains	0	1
Available-for-sale, Gross Unrealized Losses	13,008	12,216
Available-for-sale	52,192	53,843
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	2,237	2,318
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	130	97
Held-to-maturity, Fair Value	2,107	2,221
Government National Mortgage Association (GNMA)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	316	341
Available-for-sale, Gross Unrealized Gains	0	1
Available-for-sale, Gross Unrealized Losses	4	1
Available-for-sale	312	341
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	347	366
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	9	3
Held-to-maturity, Fair Value	338	363
Federal Home Loan Mortgage Corporation (FHLMC)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	21,281	21,651
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	4,607	4,051
Available-for-sale	16,674	17,600
Federal National Mortgage Association (FNMA)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	11,510	11,714
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	2,262	2,212
Available-for-sale	9,248	9,502
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity, Total	1,890	1,952
Held-to-maturity, Gross Unrealized Gains	0	0
Held-to-maturity, Gross Unrealized Losses	121	94
Held-to-maturity, Fair Value	1,769	1,858
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	33,107	33,706
Available-for-sale, Gross Unrealized Gains	0	1
Available-for-sale, Gross Unrealized Losses	6,873	6,264
Available-for-sale	26,234	27,443
US Government Agency Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	9,112	9,364
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	30	38
Available-for-sale	9,082	9,326
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	5,268	5,269
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	2,182	2,177
Available-for-sale	3,086	3,092
Municipal Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Amortized Cost	17,713	17,719
Available-for-sale, Gross Unrealized Gains	0	0
Available-for-sale, Gross Unrealized Losses	3,923	3,737
Available-for-sale	$ 13,790	$ 13,982