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Time Deposits - Additional Information (Detail)
12 Months Ended
Mar. 31, 2014
USD ($)
Mar. 31, 2014
CNY
Mar. 31, 2013
USD ($)
Mar. 31, 2013
CNY
Mar. 31, 2014
Minimum [Member]
Cash and Cash Equivalents [Line Items]          
Time deposit $ 11,339,515 70,472,817        
Time deposits, original maturity of more than three months when acquired         3 months
Time deposits, interest rate 3.35% 3.35%