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Joint Venture (Details Textual) - USD ($)
6 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Increase Or Decrease In Inter Company Profit In Inventory $ 180,865 $ 145,041
Hong Kong Joint Venture [Member]    
Equity Method Investment, Ownership Percentage 50.00%  
Products Purchased From Joint Venture $ 2,424,356 $ 4,326,557