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Discontinued Operations - Additional Information (Detail) (Discontinued Operations [Member], EMS and Home Appliances [Member], USD $)
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Discontinued Operations [Member] | EMS and Home Appliances [Member]
     
Impaired Long-Lived Assets Held and Used [Line Items]      
Impairment losses $ 1,944,571 $ 0 $ 1,230,727