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Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Income Tax Examination [Line Items]
inIncome before income (loss) taxes	$ (694)	$ 2,072	$ 761
Hong Kong [Member]
Income Tax Examination [Line Items]
inIncome before income (loss) taxes	(850)	955	513
China [Member]
Income Tax Examination [Line Items]
inIncome before income (loss) taxes	398	1,060	248
Myanmar [Member]
Income Tax Examination [Line Items]
inIncome before income (loss) taxes	$ (242)	$ 57

X

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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