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Government Grants and Subsidies (Tables)
 12 Months Ended
Mar. 31, 2023
Government Grants and Subsidies [Abstract]  
Schedule of government subsidies received
   Year ended March 31, 
   2021   2022   2023 
   $   $   $ 
             
Rental payment for factory space and dormitories located in Shenzhen (offset against cost of sales)   66    
           -
    247 
Salaries of Hong Kong employees (offset against selling, general and administrative expenses)   144    
-
    62 
                
Total   210    
-
    309