Concentrations and Risks (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Geographic Sales Concentration
Net revenue from external customers	$ 47,195,031	$ 42,923,640	$ 100,421,204	$ 96,131,877
The People’s Republic of China [Member]
Geographic Sales Concentration
Net revenue from external customers	29,320,073	15,420,664	59,828,555	41,694,449
Germany [Member]
Geographic Sales Concentration
Net revenue from external customers	3,393,413	8,670,146	8,858,106	17,410,721
United Kingdom [Member]
Geographic Sales Concentration
Net revenue from external customers	4,588,231	5,403,112	7,953,390	7,741,270
Europe-Other [Member]
Geographic Sales Concentration
Net revenue from external customers	3,189,555	2,826,082	7,753,988	7,618,743
Japan [Member]
Geographic Sales Concentration
Net revenue from external customers	2,416,434	5,060,331	8,523,582	11,012,419
United States [Member]
Geographic Sales Concentration
Net revenue from external customers	$ 4,287,325	$ 5,543,305	$ 7,503,583	$ 10,654,275