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Income Taxes (Tables)
12 Months Ended
Mar. 31, 2021
Income Tax Disclosure [Abstract]  
Schedule of (loss) income before income taxes
   Year ended March 31, 
   2019   2020   2021 
   $   $   $ 
Hong Kong   (850)   673    (233)
China   398    229    (458)
Myanmar   (242)   (6)   91 
    (694)   896    (600)
Schedule of income tax (credit) expense
   Year ended March 31, 
   2019   2020   2021 
   $   $   $ 
Current tax:               
Hong Kong               
Current tax   4    11    5 
(Over)/under provision in prior year   (30)   -    7 
China               
Current tax   -    -    - 
Myanmar               
Current tax   -    -   -
Deferred tax   -    198    (158)
Total   (26)   209    (146)
Schedule of effective income tax rate reconciliation
   Year ended March 31, 
   2019   2020   2021 
   %   %   % 
Profits tax rate in Hong Kong   16.5    16.5    16.5 
Non-deductible items/non-taxable income   3.3    26.9    25.5 
Changes in valuation allowances   (0.4)   1.1    (18.4)
Overprovision of profits tax in prior year   4.3    -    (1.1)
Effect of different tax rate of subsidiaries operating in other jurisdictions   (1.9)   1.8    5.7 
Tax effect of tax losses not recognized   (30.0)   0.1    2.0 
Utilization of tax losses previously not recognized   12.7    (11.6)   (6.8)
Others   (0.8)   (11.5)   0.9 
Effective tax rate   3.7    23.3    24.3 
Schedule of deferred income tax liabilities (assets)
   As of March 31, 
   2020   2021 
   $   $ 
Deferred tax liabilities:          
Deferred severance payment   -    392 
Property, plant and equipment   5    5 
Operating lease right-of-use assets   829    632 
Total deferred tax liabilities   834    1,029 
           
Deferred tax assets:          
Lease liabilities   (605)   (421)
Tax loss carryforwards   (478)   (520)
Deferred deductible expenses   (74)   (74)
Valuation allowance   552    593 
Total deferred tax assets   (605)   (422)
Net deferred tax liabilities   229    607 
Schedule of valuation allowance
   Year ended March 31, 
   2019   2020   2021 
   $   $   $ 
At the beginning of the year   548    668    552 
Current year addition (reduction)   120    (116)   41 
At the end of the year   668    552    593