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Cash and Cash Equivalents (Tables)
12 Months Ended
Mar. 31, 2019
Cash And Cash Equivalents Tables  
Schedule of cash and cash equivalents

   As of March 31, 
   2018   2019 
   $   $ 
         
Cash on hand   2    1 
Bank deposits   9,347    6,874 
Short term investments   1,918    1,952 
    11,267    8,827