Property, Plant and Equipment, Net (Tables)

12 Months Ended

Mar. 31, 2013

Property Plant And Equipment [Abstract]

Schedule of Property, Plant and Equipment, Net

	March 31, 2013			March 31, 2012
	US$			US$
Leasehold improvements and buildings		28,511,687			28,102,876
Plant and machinery		35,469,194			34,922,469
Moulds		386,554			386,482
Transportation equipment		1,552,518			1,581,372
Furniture, fixtures and equipment		5,885,172			5,431,091
Construction in progress		2,288,034			4,760
		74,093,159			70,429,050
Less: Accumulated depreciation		(47,564,478	)		(48,495,263	)
Property, plant and equipment, net		26,528,681			21,933,787