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Investment Securities-Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	$ 11,137	$ 12,075
Held-to-maturity Securities, Gross Unrealized Gains	57	81
Held-to-maturity Securities, Gross Unrealized Losses	87	247
Debt Securities, Held-to-maturity, Fair Value	11,107	11,909
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	80,784	63,435
Available-for-sale Securities, Gross Unrealized Gains	225	0
Available-for-sale Securities, Gross Unrealized Losses	1,164	2,726
Available-for-sale Securities	79,845	60,709
Government National Mortgage Association (GNMA)
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	1,214	1,434
Held-to-maturity Securities, Gross Unrealized Gains	40	51
Held-to-maturity Securities, Gross Unrealized Losses	0	0
Debt Securities, Held-to-maturity, Fair Value	1,254	1,485
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	4,443	2,163
Available-for-sale Securities, Gross Unrealized Gains	25	0
Available-for-sale Securities, Gross Unrealized Losses	86	97
Available-for-sale Securities	4,382	2,066
Federal Home Loan Mortgage Corporation (FHLMC)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	11,104	6,633
Available-for-sale Securities, Gross Unrealized Gains	69	0
Available-for-sale Securities, Gross Unrealized Losses	148	283
Available-for-sale Securities	11,025	6,350
Federal National Mortgage Association (FNMA)
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	8,923	9,641
Held-to-maturity Securities, Gross Unrealized Gains	0	0
Held-to-maturity Securities, Gross Unrealized Losses	87	247
Debt Securities, Held-to-maturity, Fair Value	8,836	9,394
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	27,094	24,638
Available-for-sale Securities, Gross Unrealized Gains	131	0
Available-for-sale Securities, Gross Unrealized Losses	617	1,227
Available-for-sale Securities	26,608	23,411
Mortgage-Backed Securities
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	10,137	11,075
Held-to-maturity Securities, Gross Unrealized Gains	40	51
Held-to-maturity Securities, Gross Unrealized Losses	87	247
Debt Securities, Held-to-maturity, Fair Value	10,090	10,879
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	42,641	33,434
Available-for-sale Securities, Gross Unrealized Gains	225	0
Available-for-sale Securities, Gross Unrealized Losses	851	1,607
Available-for-sale Securities	42,015	31,827
US Government Agency Securities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	33,089	14,490
Available-for-sale Securities, Gross Unrealized Gains	0	0
Available-for-sale Securities, Gross Unrealized Losses	236	258
Available-for-sale Securities	32,853	14,232
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	17	30
Held-to-maturity Securities, Gross Unrealized Losses	0	0
Debt Securities, Held-to-maturity, Fair Value	1,017	1,030
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost	5,054	5,078
Available-for-sale Securities, Gross Unrealized Gains	0	0
Available-for-sale Securities, Gross Unrealized Losses	77	212
Available-for-sale Securities	$ 4,977	4,866
Other investments
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Amortized Cost		10,433
Available-for-sale Securities, Gross Unrealized Gains		0
Available-for-sale Securities, Gross Unrealized Losses		649
Available-for-sale Securities		$ 9,784

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