Investment Securities-Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	$ 10,151	$ 11,137
Held-to-maturity Securities, Gross Unrealized Gains	418	57
Held-to-maturity Securities, Gross Unrealized Losses	5	87
Debt Securities, Held-to-maturity, Fair Value	10,564	11,107
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	64,897	80,784
Available-for-sale Securities, Gross Unrealized Gains	1,115	225
Available-for-sale Securities, Gross Unrealized Losses	183	1,164
Available-for-sale Securities	65,829	79,845
Government National Mortgage Association (GNMA)
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	972	1,214
Held-to-maturity Securities, Gross Unrealized Gains	76	40
Held-to-maturity Securities, Gross Unrealized Losses	0	0
Debt Securities, Held-to-maturity, Fair Value	1,048	1,254
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	3,510	4,443
Available-for-sale Securities, Gross Unrealized Gains	77	25
Available-for-sale Securities, Gross Unrealized Losses	0	86
Available-for-sale Securities	3,587	4,382
Federal Home Loan Mortgage Corporation (FHLMC)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	9,244	11,104
Available-for-sale Securities, Gross Unrealized Gains	312	69
Available-for-sale Securities, Gross Unrealized Losses	18	148
Available-for-sale Securities	9,538	11,025
Federal National Mortgage Association (FNMA)
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	8,179	8,923
Held-to-maturity Securities, Gross Unrealized Gains	342	0
Held-to-maturity Securities, Gross Unrealized Losses	0	87
Debt Securities, Held-to-maturity, Fair Value	8,521	8,836
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	21,495	27,094
Available-for-sale Securities, Gross Unrealized Gains	673	131
Available-for-sale Securities, Gross Unrealized Losses	0	617
Available-for-sale Securities	22,168	26,608
Mortgage-Backed Securities
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	9,151	10,137
Held-to-maturity Securities, Gross Unrealized Gains	418	40
Held-to-maturity Securities, Gross Unrealized Losses	0	87
Debt Securities, Held-to-maturity, Fair Value	9,569	10,090
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	34,249	42,641
Available-for-sale Securities, Gross Unrealized Gains	1,062	225
Available-for-sale Securities, Gross Unrealized Losses	18	851
Available-for-sale Securities	35,293	42,015
US Government Agency Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	26,616	33,089
Available-for-sale Securities, Gross Unrealized Gains	20	0
Available-for-sale Securities, Gross Unrealized Losses	155	236
Available-for-sale Securities	26,481	32,853
Corporate Bonds
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	1,000	1,000
Held-to-maturity Securities, Gross Unrealized Gains	0	17
Held-to-maturity Securities, Gross Unrealized Losses	5	0
Debt Securities, Held-to-maturity, Fair Value	995	1,017
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	4,032	5,054
Available-for-sale Securities, Gross Unrealized Gains	33	0
Available-for-sale Securities, Gross Unrealized Losses	10	77
Available-for-sale Securities	$ 4,055	$ 4,977

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

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