Short-Term Loans (Additional Information) (Detail)	3 Months Ended		3 Months Ended			3 Months Ended				3 Months Ended
	Mar. 31, 2013 USD ($) Numbers	Dec. 31, 2012 USD ($)	Mar. 31, 2013 Board Of Directors Chairman [Member] USD ($)	Mar. 31, 2013 Employees [Member] USD ($)	Mar. 31, 2013 Employees [Member] CNY	Mar. 31, 2013 Bank Of Zhengzhou [Member] USD ($)	Mar. 31, 2013 Bank Of Zhengzhou [Member] CNY	Mar. 31, 2012 Maximum [Member]	Mar. 31, 2013 Minimum [Member]	Mar. 31, 2013 Office building, land use rights, or machinery and equipment [Member] USD ($) Numbers	Mar. 31, 2013 Cash Deposit [Member] USD ($) Numbers	Mar. 31, 2013 Third parties, Beijing Annec or Fuchao Li, the Company's Chairman Loan [Member] USD ($) Numbers
Short-term Debt [Line Items]
Short-term Debt, Weighted Average Interest Rate								7.571%	7.147%
Number Of Short Term Loans Secured										4	2	8
Number Of Banks	3
Short-term loans	$ 28,956,691	$ 24,037,073				$ 4,787,285	30,000,000			$ 6,536,000	$ 5,665,000	$ 16,755,000
Bank Loans						4,787,285
Related party payables	194,683	407,767				4,492,662	28,200,000
Debt Instrument, Interest Rate During Period			5.40%
Percentage Of Interest On Security Deposit						3.30%	3.30%
Other Loans Payable				4,787,285	30,000,000
Loans Payable, Current			$ 4,492,662