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Commitment and contingencies (Tables)
12 Months Ended
Mar. 31, 2019
Text block [abstract]  
Future Minimum Lease Payments under Non-cancelable Operating Leases

The details of future minimum lease payments under non-cancelable operating leases as at March 31, 2019 are as follows:

 

     Operating lease  

Less than 1 year

   $ 30,505  

1-3 years

     54,534  

3-5 years

     41,951  

More than 5 years

     34,929  
  

 

 

 

Total minimum lease payments

   $ 161,919