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Intangible Assets (Detail)
 3 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2012
USD ($)
Sep. 30, 2011
USD ($)
Sep. 30, 2012
USD ($)
Sep. 30, 2012
CNY
Sep. 30, 2011
USD ($)
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Sep. 30, 2012
Annual Fee Per MU [Member]
USD ($)
Dec. 31, 2011
Customer Relationships [Member]
USD ($)
Dec. 31, 2011
Trademarks [Member]
Sep. 30, 2012
Land Use Right Acquired February 28, 2012 [Member]
USD ($)
Sep. 30, 2012
Customer Relationships [Member]
Sep. 30, 2012
Trademarks [Member]
Dec. 31, 2011
Trademarks [Member]
USD ($)
Finite-Lived Intangible Asset, Useful Life     50 years 50 years   50 years     5 years 10 years   5 years 10 years  
Finite-Lived Intangible Assets, Amortization Method     straight-line basis for 50 years straight-line basis for 50 years   straight-line basis for 50 years                
Other Finite-Lived Intangible Assets, Gross       3,400,000         $ 50,000   $ 536,193      
Annual fee for land fill on land use rights     333,000 2,100,000       240            
Annual land filling fee, term     60 60                    
Land filling fee, increase, percentage     5.00% 5.00%                    
Number of years each annual land filling fee will increase     5                      
Number of trademarks acquired     2 2           2        
Amortization of Intangible Assets 10,532 5,311 39,845   10,823 21,164 10,652              
Finite-Lived Intangible Assets, Amortization Expense, Year Two 50,400   50,400     41,200                
Finite-Lived Intangible Assets, Amortization Expense, Year Three 50,400   50,400     41,200                
Finite-Lived Intangible Assets, Amortization Expense, Year Four 50,400   50,400     41,200                
Finite-Lived Intangible Assets, Amortization Expense, Year Five 49,552   49,552     41,200                
Finite-Lived Intangible Assets, Amortization Expense, after Year Five 40,385   40,385     40,300                
Payments to Acquire Intangible Assets     $ 538,230   $ 200,000 $ 200,000 $ 0   $ 200,000         $ 200,000