Annual report pursuant to Section 13 and 15(d)

Bank Loans (Details 1)

v3.8.0.1
Bank Loans (Details 1) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Total long-term bank loans $ 23,185,700 $ 39,137,956
Less: current portion (5,968,596) (17,298,544)
Long-term bank loans, non-current portion 17,217,104 21,839,412
Export-Import Bank of China [Member]    
Debt Instrument [Line Items]    
Total long-term bank loans 5,852,674
Export-Import Bank of China One [Member]    
Debt Instrument [Line Items]    
Total long-term bank loans 1,153,236
Export-Import Bank of China Two [Member]    
Debt Instrument [Line Items]    
Total long-term bank loans 4,742,684
Export-Import Bank of China Three [Member]    
Debt Instrument [Line Items]    
Total long-term bank loans 14,538,888 18,019,317
China Development Bank [Member]    
Debt Instrument [Line Items]    
Total long-term bank loans $ 8,646,812 $ 9,370,045