Investments (Details 1) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018
Available-for-Sale Securities by Investment Category
Debt Securities, Amortized Cost Basis	$ 15,748	$ 16,412
Debt Securities, Available-for-sale	15,523	16,181
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	111	110
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(336)	(341)
U.S. Treasury and Government Agencies [Member]
Available-for-Sale Securities by Investment Category
Debt Securities, Amortized Cost Basis	300	300
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Gross Unrealized Losses	(8)	(7)
Debt Securities, Available-for-sale	292	293
Mortgage-backed securities [Member]
Available-for-Sale Securities by Investment Category
Debt Securities, Amortized Cost Basis	7,334	7,654
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Gross Unrealized Losses	(182)	(155)
Debt Securities, Available-for-sale	7,152	7,499
States and political subdivisions [Member]
Available-for-Sale Securities by Investment Category
Debt Securities, Amortized Cost Basis	6,038	6,377
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	109	109
Gross Unrealized Losses	(118)	(149)
Debt Securities, Available-for-sale	6,029	6,337
Corporate debt securities [Member]
Available-for-Sale Securities by Investment Category
Debt Securities, Amortized Cost Basis	2,076	2,081
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	2	1
Gross Unrealized Losses	(28)	(30)
Debt Securities, Available-for-sale	$ 2,050	$ 2,052

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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-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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Amount, before tax, of unrealized loss 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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-Publisher FASB
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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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