Other Payables and Accrued Liabilities (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Summary of other payables and accrued liabilities
Building construction costs payable		$ 410,542
Accrued professional fees	41,497	121,844
Accrued wages and welfare	4,279,561	3,289,674
Other payables	$ 6,226,132	$ 2,174,374