7. INVENTORIES, NET - Schedule of inventory (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Raw materials	$ 13,540,403	$ 13,668,736
Work-in-progress	5,438,874	8,745,336
Finished goods	10,158,200	8,424,220
Total inventories, net	$ 29,137,477	$ 30,838,292

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Amount before last-in first-out (LIFO) and valuation reserves of merchandise or goods held by the entity that are readily available for sale.

+ References

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-Name Regulation S-X (SX)

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- Definition

Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Gross amount of unprocessed items to be consumed in the manufacturing or production process. Also includes purchased parts that will be used as components of a finished product.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Gross amount of merchandise or goods which are partially completed, are generally comprised of raw materials, labor and factory overhead costs, and which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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