Schedule of Current Portions of Notes Payable (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Long-term debt current portion	$ 0	$ 30,511,656
Debenture issued by 5 private placement holders underwritten by Guoyuan Securities Co., Ltd. 1 [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	10.00%
Long-term debt current portion	$ 0	9,517,882
Debenture issued by 2 private placement holders underwritten by Daiwa SSC Securities Co. Ltd. 1 [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	9.50%
Long-term debt current portion	$ 0	15,368,774
Loans from Deutsche Investitions-und Entwicklungsgesellschaft mbH (DEG) 1 [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.51%
Long-term debt current portion	$ 0	1,875,000
Loans from Deutsche Investitions-und Entwicklungsgesellschaft mbH (DEG) 2 [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.51%
Long-term debt current portion	$ 0	1,875,000
Loans from Deutsche Investitions-und Entwicklungsgesellschaft mbH (DEG) 3 [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.51%
Long-term debt current portion	$ 0	$ 1,875,000