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v3.19.2

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 |

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