Loans (Details 1) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Collateral Amount	$ 49,574,727	$ 57,521,579
Pledged deposits [Member]
Collateral Amount	16,021,758	16,014,118
Prepaid land use rights [Member]
Collateral Amount	7,378,014	7,446,117
Buildings [Member]
Collateral Amount	17,254,252	17,501,902
Machinery and equipment [Member]
Collateral Amount	8,920,703	10,206,100
Bills receivable [Member]
Collateral Amount		$ 6,353,342