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Loans Payable (Details Textual) (USD $)
3 Months Ended 12 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2013
Rural Credit Union of Xushui County [Member]
Dec. 31, 2012
Rural Credit Union of Xushui County [Member]
Mar. 31, 2013
Term Loan [Member]
Rural Credit Union of Xushui County [Member]
Dec. 31, 2012
Term Loan [Member]
Rural Credit Union of Xushui County [Member]
Mar. 31, 2013
New term loan agreement [Member]
Rural Credit Union of Xushui County [Member]
Dec. 31, 2012
New term loan agreement [Member]
Rural Credit Union of Xushui County [Member]
Mar. 31, 2013
Industrial & Commercial Bank of China (a) [Member]
Factoring Agreement [Member]
Dec. 31, 2011
Industrial & Commercial Bank of China (a) [Member]
Factoring Agreement [Member]
Dec. 31, 2012
Industrial & Commercial Bank of China (a) [Member]
Factoring Agreement [Member]
Mar. 31, 2013
Industrial & Commercial Bank of China (b) [Member]
Factoring Agreement [Member]
Dec. 31, 2012
Industrial & Commercial Bank of China (b) [Member]
Factoring Agreement [Member]
Mar. 31, 2013
Bank of Hebei (c) [Member]
Dec. 31, 2012
Bank of Hebei (c) [Member]
Loans Payable (Textual)                              
Maximum credit limit of short term loan                   $ 787,116   $ 1,595,762   $ 1,595,762  
Unpaid balance of short term debt 3,989,404 3,962,844             797,880   792,568 1,595,762 1,585,138 1,595,762 1,585,138
Loan issuance date             Jun. 10, 2011   Sep. 04, 2012 Aug. 08, 2011   Nov. 09, 2012   Sep. 19, 2012  
Short-term bank loans, fixed interest rate                 6.60% 8.528%   6.60%   6.60%  
Short-term bank loans interest rate as percentage of prime rate                       1.00%      
Loan, maturity date             Jun. 09, 2013   Aug. 28, 2013 Aug. 15, 2012   Nov. 08, 2013   Sep. 19, 2013  
Loan paid off date                   Aug. 15, 2012          
Secured short-term bank loan 2,393,642 2,377,706                          
Unsecured short term loan 1,595,762 1,585,138                          
Notes payable 2,633,007 3,170,276                     792,568 1,595,762  
Working capital loan drawn from banking facility                           1,595,762 1,585,138
Accounts receivable 2,400,084 2,836,335                          
Unutilized credit facility for notes payable 0 279,258                          
Average short-term borrowing rates 6.60% 7.49%                          
Loan from credit union    1,561,361 5,768,678 5,730,273 1,571,825 1,561,361                  
Term of loans payable         3 years                    
Long-term debt, Interest rate per month         0.72%   0.72%                
Security loan agreement by manufacturing equipment             9,025,899 9,316,645              
Current portion of long-term loans from credit union 5,768,678 4,168,912         4,196,853 4,168,912              
Interest expense for the short-term bank loans and long-term loans $ 190,548 $ 171,015