PROPERTY, PLANT AND EQUIPMENT, NET - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 580,087	$ 567,765	$ 1,136,103	$ 1,092,772