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Income Taxes (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Taxes (Textual)      
Statutory tax rate 25.00% 25.00% 25.00%
Effective income tax rate 29.90% 26.30% 27.50%
Income tax, statute of limitations period 5 years    
United States [Member]      
Income Taxes (Textual)      
Statutory tax rate 34.00%    
State tax rate 0.00%    
Cumulative undistributed earnings of foreign subsidiaries $ 135,803,983 $ 126,527,569  
Effective income tax rate 34.00%    
PRC [Member]      
Income Taxes (Textual)      
Statutory tax rate 25.00%    
Net operating losses $ 4,815,756 $ 4,269,713 $ 3,813,374
Percentage of valuation allowance 100.00%