12. Inventories, Net (Detail) - Table of Inventories, Net (USD $)	Dec. 31, 2012	Dec. 31, 2011
Raw materials	$ 13,668,736	$ 15,461,871
Work-in-progress	8,745,336	8,678,336
Finished goods	8,424,220	9,188,742
Total inventories	$ 30,838,292	$ 33,328,949

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

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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.

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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.

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