Short Term Borrowings (Details)
12 Months Ended
Dec. 31, 2014
USD ($)
Dec. 31, 2014
CNY
Dec. 31, 2013
USD ($)
Dec. 31, 2014
PRC Commercial Bank
USD ($)
Dec. 31, 2014
PRC Commercial Bank
CNY
Short-term loan balance $ 35,953,500 220,000,000      
Bank deposits as collateral 38,290,478   0 38,290,478 234,300,000
Term of the loan 12 months        
Interest rate (as a percent) 6.50%        
Interest expense accrued $ 6,416