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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2021
Accounting Policies [Abstract] |
Schedule of gross amount of goodwill and accumulated impairment losses |
|  | Kayser Myanmar |
|  | $ |
Gross as of April 1, 2019, March 31, 2020 and 2021 |  |  | 77 |
Accumulated impairment loss as of April 1, 2019 |  |  | (77 | )
Accumulated impairment loss as at March 31, 2020 and 2021 |  |  | (77 | )
Net as of March 31, 2020 and 2021 |  |  | - |

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