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Taxes Payable (Detail) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Accounts Payable and Accrued Liabilities [Line Items]    
Taxes payable $ 569,653 $ 2,943,034
Income
    
Accounts Payable and Accrued Liabilities [Line Items]    
Taxes payable (121,779) 2,205,337
Business
    
Accounts Payable and Accrued Liabilities [Line Items]    
Taxes payable 275,046 305,141
Value Added Taxes
    
Accounts Payable and Accrued Liabilities [Line Items]    
Taxes payable 379,453 380,898
Other
    
Accounts Payable and Accrued Liabilities [Line Items]    
Taxes payable $ 36,933 $ 51,658