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PROPERTY, PLANT AND EQUIPMENT, NET
12 Months Ended
Mar. 31, 2017
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT, NET
  5. PROPERTY, PLANT AND EQUIPMENT, NET
 
    Property, plant and equipment, net consist of the following:

 

    As of March 31,  
    2016     2017  
    $     $  
             
At cost:                
Machinery and equipment     12,205       12,386  
Furniture and fixtures     441       442  
Leasehold improvements     493       506  
Motor vehicles     153       153  
                 
Total     13,292       13,487  
Less: Accumulated depreciation and impairment     (12,171 )     (12,533 )
                 
Property, plant and equipment, net     1,121       954  

 

    Depreciation expense incurred for the years ended March 31, 2015, 2016 and 2017 were $393, $317 and $266, respectively.
 
    Write off of property, plant and equipment amounting to $nil, $117 and $nil during the years ended March 31, 2015, 2016 and 2017, respectively.