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Accrued Expenses and Other Current Liabilities (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Payables and Accruals [Abstract]    
Accrued salaries and social welfare $ 337,599 $ 345,710
Accrued expenses 388,572 291,043
Reimbursed employee's expense 50,228 34,212
Deposits from customers 198,907 89,382
Others 1,813 2,526
Total accrued expenses and other current liabilities $ 977,119 $ 762,873