Name of Financial Institution Due Date and Amounts Outstanding for Bank Notes Payable (Detail) (USD $)			6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due September Five Twenty Twelve	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due September Sixteen Twenty Twelve	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due September Nineteen Twenty Twelve	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due September Twenty Twenty Twelve	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due September Six Twenty Twelve	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due September Twenty Seven Twenty Twelve	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due October Sixteen Twenty Twelve	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due October Twenty Seven Twenty Twelve	Jun. 30, 2012 Guangdong Development Bank - Anyang Branch Bank Note Due November Thirty Twenty Twelve	Jun. 30, 2012 China Construction Bank Zhongzhou Branch Bank Note Due September Nineteen Twenty Twelve	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due July Five Twenty Twelve	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due July Six Twenty Twelve AnJie Wu	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due July Six Twenty Twelve JianKai Wang	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due August Twenty One Twenty Twelve	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due September Twenty One Twenty Twelve	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due September Twenty Eight Twenty Twelve	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due November Twenty Four Twenty Twelve	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due December Five Twenty Twelve	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due December Seven Twenty Twelve AnJie Wu	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due December Seven Twenty Twelve JianKai Wang	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due December Twelve Twenty Twelve	Jun. 30, 2012 Shanghai Pudong Development Bank - Zhengzhou Branch Bank Note Due December Twenty Six Twenty Twelve	Jun. 30, 2012 Commercial Bank of Anyang Bank Note Due August Six Twenty Twelve	Jun. 30, 2012 Commercial Bank of Anyang Bank Note Due November Twenty Nine Twenty Twelve	Jun. 30, 2012 Commercial Bank of Anyang Bank Note Due October One Twenty Twelve	Jun. 30, 2012 Commercial Bank of Anyang Bank Note Due December Eleven Twenty Twelve	Jun. 30, 2012 Bank of Luoyang Zhengzhou Branch Bank Note Due October Eleven Twenty Twelve	Jun. 30, 2012 Bank of Luoyang Zhengzhou Branch Bank Note Due October Twenty Six Twenty Twelve	Jun. 30, 2012 Bank of Luoyang Zhengzhou Branch Bank Note Due December Twenty Seven Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due August Twenty One Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due October Twenty Six Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due July Thirty Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due August Twenty Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due October Twelve Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due December Twenty Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due August Fifteen Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due August Twenty Seven Twenty Twelve	Jun. 30, 2012 China Everbright Bank - Zhengzhou Branch Bank Note Due November Eight Twenty Twelve	Jun. 30, 2012 Bank of Mingsheng Zhengzhou Branch Bank Note Due August Eight Twenty Twelve	Jun. 30, 2012 Bank of Mingsheng Zhengzhou Branch Bank Note Due August Thirteen Twenty Twelve	Jun. 30, 2012 Bank of Mingsheng Zhengzhou Branch Bank Note Due October Twenty Twenty Twelve	Jun. 30, 2012 Bank of Mingsheng Zhengzhou Branch Bank Note Due December Four Twenty Twelve	Jun. 30, 2012 Bank of Mingsheng Zhengzhou Branch Bank Note Due December Fifteen Twenty Twelve	Jun. 30, 2012 Bank of Mingsheng Zhengzhou Branch Bank Note Due October Twenty Four Twenty Twelve	Jun. 30, 2012 China Citic Bank Anyang Branch Bank Note Due November Twenty One Twenty Twelve	Jun. 30, 2012 China Citic Bank Anyang Branch Bank Note Due November Twenty Five Twenty Twelve	Jun. 30, 2012 China Citic Bank Anyang Branch Bank Note Due November Twenty Eight Twenty Twelve	Jun. 30, 2012 Bank of Pingdingshan Bank Note Due September Twenty Six Twenty Twelve	Jun. 30, 2012 China Merchants Bank Anyang Branch Bank Note Due September Thirteen Twenty Twelve	Jun. 30, 2012 Bank of China Huojiacun Branch Bank Note Due September Fifteen Twenty Twelve	Jun. 30, 2012 Industrial Bank Weiyi Branch Bank Note Due July Nine Twenty Twelve	Jun. 30, 2012 Industrial Bank Weiyi Branch Bank Note Due July Ten Twenty Twelve	Jun. 30, 2012 Industrial Bank Weiyi Branch Bank Note Due July Twelve Twenty Twelve	Jun. 30, 2012 Industrial Bank Weiyi Branch Bank Note Due August Twenty Eight Twenty Twelve	Jun. 30, 2012 Industrial and Commercial Bank of China - Shuiye Branch Bank Note Due October Twenty Seven Twenty Twelve	Jun. 30, 2012 China Minsheng Banking Corp.- Zhengzhou Branch Bank Note Due August Fifteen Twenty Twelve
Debt Instrument [Line Items]
Due Date			Sep. 05, 2012	Sep. 16, 2012	Sep. 19, 2012	Sep. 20, 2012	Sep. 06, 2012	Sep. 27, 2012	Oct. 16, 2012	Oct. 27, 2012	Nov. 30, 2012	Sep. 19, 2012	Jul. 05, 2012	Jul. 06, 2012	Jul. 06, 2012	Aug. 21, 2012	Sep. 21, 2012	Sep. 28, 2012	Nov. 24, 2012	Dec. 05, 2012	Dec. 07, 2012	Dec. 07, 2012	Dec. 12, 2012	Dec. 26, 2012	Aug. 06, 2012	Nov. 29, 2012	Oct. 01, 2012	Dec. 11, 2012	Oct. 11, 2012	Oct. 26, 2012	Dec. 27, 2012	Aug. 21, 2012	Oct. 26, 2012	Jul. 30, 2012	Aug. 20, 2012	Oct. 12, 2012	Dec. 20, 2012	Aug. 15, 2012	Aug. 27, 2012	Nov. 08, 2012	Aug. 08, 2012	Aug. 13, 2012	Oct. 20, 2012	Dec. 04, 2012	Dec. 15, 2012	Oct. 24, 2012	Nov. 21, 2012	Nov. 25, 2012	Nov. 28, 2012	Sep. 26, 2012	Sep. 13, 2012	Sep. 15, 2012	Jul. 09, 2012	Jul. 10, 2012	Jul. 12, 2012	Aug. 28, 2012	Oct. 27, 2012	Aug. 15, 2012
Bank notes payable	$ 231,298,113	$ 186,890,191	$ 3,162,105	$ 3,162,105	$ 3,162,105	$ 1,581,053	$ 3,162,105	$ 1,581,053	$ 2,371,579	$ 3,162,105	$ 2,371,579	$ 6,324,212	$ 6,324,212	$ 3,162,105	$ 3,162,105	$ 1,581,053	$ 3,162,105	$ 3,162,105	$ 2,371,579	$ 5,059,369	$ 4,743,158	$ 3,162,105	$ 3,004,000	$ 2,371,579	$ 9,486,316	$ 6,324,211	$ 4,743,158	$ 3,162,105	$ 4,743,158	$ 1,581,053	$ 3,320,211	$ 3,162,105	$ 3,162,105	$ 6,314,319	$ 4,743,158	$ 3,162,105	$ 7,272,842	$ 3,162,105	$ 1,581,053	$ 3,162,105	$ 7,905,263	$ 3,952,632	$ 7,272,842	$ 7,114,737	$ 1,976,316	$ 1,581,053	$ 1,581,053	$ 3,162,105	$ 3,636,421	$ 9,486,316	$ 7,905,263	$ 6,403,263	$ 7,905,263	$ 7,905,263	$ 6,324,211	$ 1,581,053	$ 1,581,053	$ 3,636,421

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