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Cash and Cash Equivalents (Tables)
12 Months Ended
Mar. 31, 2022
Cash and Cash Equivalents [Abstract]  
Schedule of cash and cash equivalents
   As of March 31, 
   2021   2022 
   $   $ 
         
Cash on hand   37    49 
Bank deposits   7,720    5,961 
           
    7,757    6,010