16. Property, Plant, and Equipment, Net (Detail) - Table of Property, Plant and Equipment with Related Accumulated Depreciation (USD $)	Dec. 31, 2012	Dec. 31, 2011
Property, Plant, and Equipment, Gross	$ 149,736,990	$ 157,569,564
Less: Accumulated depreciation	(34,746,182)	(28,829,927)
Property, plant and equipment, net	114,990,808	128,739,637
Buildings and Plant [Member]
Property, Plant, and Equipment, Gross	62,825,600	71,761,419
Machinery and Equipment [Member]
Property, Plant, and Equipment, Gross	79,997,837	79,153,189
Office Equipment [Member]
Property, Plant, and Equipment, Gross	3,933,542	2,418,688
Automobiles [Member]
Property, Plant, and Equipment, Gross	$ 2,980,011	$ 4,236,268