Investment Securities-Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	$ 7,807	$ 10,151
Held-to-maturity Securities, Gross Unrealized Gains	333	418
Held-to-maturity Securities, Gross Unrealized Losses	0	5
Debt Securities, Held-to-maturity, Fair Value	8,140	10,564
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	89,682	64,897
Available-for-sale Securities, Gross Unrealized Gains	155	1,115
Available-for-sale Securities, Gross Unrealized Losses	3,330	183
Available-for-sale Securities	86,507	65,829
Government National Mortgage Association (GNMA)
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	683	972
Held-to-maturity Securities, Gross Unrealized Gains	69	76
Held-to-maturity Securities, Gross Unrealized Losses	0	0
Debt Securities, Held-to-maturity, Fair Value	752	1,048
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	987	3,510
Available-for-sale Securities, Gross Unrealized Gains	39	77
Available-for-sale Securities, Gross Unrealized Losses	0	0
Available-for-sale Securities	1,026	3,587
Federal Home Loan Mortgage Corporation (FHLMC)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	28,458	9,244
Available-for-sale Securities, Gross Unrealized Gains	88	312
Available-for-sale Securities, Gross Unrealized Losses	761	18
Available-for-sale Securities	27,785	9,538
Federal National Mortgage Association (FNMA)
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	7,124	8,179
Held-to-maturity Securities, Gross Unrealized Gains	264	342
Held-to-maturity Securities, Gross Unrealized Losses	0	0
Debt Securities, Held-to-maturity, Fair Value	7,388	8,521
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	15,120	21,495
Available-for-sale Securities, Gross Unrealized Gains	0	673
Available-for-sale Securities, Gross Unrealized Losses	510	0
Available-for-sale Securities	14,610	22,168
Mortgage-Backed Securities
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	7,807	9,151
Held-to-maturity Securities, Gross Unrealized Gains		418
Held-to-maturity Securities, Gross Unrealized Losses		0
Debt Securities, Held-to-maturity, Fair Value	8,140	9,569
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	44,565	34,249
Available-for-sale Securities, Gross Unrealized Gains	127	1,062
Available-for-sale Securities, Gross Unrealized Losses	1,271	18
Available-for-sale Securities	43,421	35,293
US Government Agency Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	18,744	26,616
Available-for-sale Securities, Gross Unrealized Gains	0	20
Available-for-sale Securities, Gross Unrealized Losses	113	155
Available-for-sale Securities	18,631	26,481
Corporate Bonds
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity		1,000
Held-to-maturity Securities, Gross Unrealized Gains		0
Held-to-maturity Securities, Gross Unrealized Losses		5
Debt Securities, Held-to-maturity, Fair Value		995
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	5,274	4,032
Available-for-sale Securities, Gross Unrealized Gains	0	33
Available-for-sale Securities, Gross Unrealized Losses	793	10
Available-for-sale Securities	4,481	$ 4,055
Municipal Bonds
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	17,763
Available-for-sale Securities, Gross Unrealized Gains	0
Available-for-sale Securities, Gross Unrealized Losses	1,153
Available-for-sale Securities	16,610
Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	3,336
Available-for-sale Securities, Gross Unrealized Gains	28
Available-for-sale Securities, Gross Unrealized Losses	0
Available-for-sale Securities	$ 3,364

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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