Plant and Equipment, net (Components of Plant and Equipment, Net) (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 22,653,948	$ 22,746,308
Less accumulated depreciation	(6,513,121)	(6,240,887)
Total plant and equipment, net	16,140,827	16,505,421
Plants And Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	15,236,553	15,180,863
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	4,723,927	4,703,072
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	2,118,735	2,321,267
Others [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 574,733	$ 541,106

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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