Property, Plant and Equipment (Details Textuals) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Property, Plant and Equipment
Depreciation expense, included in general and administration expenses	$ 111,897	$ 72,750	$ 194,736	$ 120,822
Depreciation expense, included in cost of sales	$ 571,191	$ 768,302	$ 1,149,150	$ 1,540,483