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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Mar. 31, 2020
Accounting Policies [Abstract]  
Schedule of gross amount of goodwill and accumulated impairment losses

   Kayser
Myanmar
 
   $ 
     
Gross as of April 1, 2018, March 31, 2019 and 2020   77 
Accumulated impairment loss as of April 1, 2018   - 
Impairment losses during the year ended March 31, 2019   (77)
Accumulated impairment loss as at March 31, 2019 and 2020   (77)
Net as of March 31, 2019 and 2020   -