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Employee Benefits - Additional Information (Detail)
12 Months Ended
Mar. 31, 2013
USD ($)
Age
Mar. 31, 2012
USD ($)
Mar. 31, 2011
USD ($)
Mar. 31, 2013
MPF [Member]
USD ($)
Mar. 31, 2013
MPF [Member]
HKD
Mar. 31, 2013
MPF [Member]
Minimum [Member]
Age
Mar. 31, 2013
MPF [Member]
Maximum [Member]
Age
Mar. 31, 2012
Home Appliances [Member]
USD ($)
Mar. 31, 2013
ORSO [Member]
Defined Benefit Plan Disclosure [Line Items]                  
Eligible age of employees for Mandatory Provident Fund           18 64    
Minimum period of service for Mandatory Provident Fund           60 days      
Employee contribution           5.00%     5.00%
Employer and employee contribution on Employee Benefits Plan       $ 161 1,250        
Basic salary for the fixed amount of employee contribution       3,221 25,000        
Percentage of Company's contribution       100.00% 100.00%        
Retirement Age 65                
Eligible joining period to participate in ORSO Scheme Before December 2000                
Costs recognized in defined contribution 48,075 61,107 72,878            
Company's contribution 17.30%                
Costs incurred for employee benefit plans 1,963,173   2,547,639            
Net benefit from the exit of segment               $ 449,557