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INTANGIBLE ASSETS, NET - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 30, 2011	Dec. 31, 2012	Dec. 31, 2011
Land use rights
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 9,831	$ 9,439	$ 24,545	$ 29,856
Patents
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 330,933	$ 1,419,727	$ 939,698	$ 3,315,517

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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