Quarterly report pursuant to Section 13 or 15(d)

Notes payable (Details Textual)

v3.7.0.1
Notes payable (Details Textual) - USD ($)
Jun. 30, 2017
Dec. 31, 2016
Short-term Debt [Line Items]    
Short-term Bank Loans and Notes Payable $ 41,373,724 $ 30,658,000