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Segment Information (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Revenue from contracts with customers:	$ 14,277	$ 19,166	$ 19,603
Property, plant and equipment, net	886	770
Hong Kong and China [Member]
Revenue from contracts with customers:	2,794	4,086	4,700
Property, plant and equipment, net	147	581
Europe [Member]
Revenue from contracts with customers:	10,901	14,446	14,037
Other Asian Countries [Member]
Revenue from contracts with customers:	128	46	31
North America [Member]
Revenue from contracts with customers:	454	588	$ 835
Myanmar [Member]
Property, plant and equipment, net	$ 739	$ 189

X

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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