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Notes Payable (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Jun. 30, 2019
Notes Payable (Textual)    
Notes payable $ 3,642,616
Restricted cash $ 3,642,616
Bank of Cangzhou [Member]    
Notes Payable (Textual)    
Bank acceptance notes from bank, interest rate  
Handling charges of bank acceptance notes percentage 0.05%  
Description of maturity of notes payable The acceptance notes were due and paid off in January 2019.