11. PROPERTY, PLANT AND EQUIPMENT, NET (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Cost of goods sold	Mar. 31, 2012 Cost of goods sold	Mar. 31, 2013 Buildings and Plant	Dec. 31, 2012 Buildings and Plant	Mar. 31, 2013 Machinery and equipment	Dec. 31, 2012 Machinery and equipment	Mar. 31, 2013 Land Use Rights	Dec. 31, 2012 Land Use Rights
Depreciation	$ 2,231,390	$ 1,977,367	$ 1,266,044	$ 1,499,429
Pledged assets separately reported, other assets pledged as collateral, at fair value					$ 15,795,317	$ 13,021,820	$ 25,631,927	$ 26,052,365	$ 3,277,668	$ 4,322,344