XML 52 R36.htm IDEA: XBRL DOCUMENT v3.20.1
Accrued Expenses and Other Current Liabilities (Tables)
12 Months Ended
Dec. 31, 2019
Payables and Accruals [Abstract]  
Schedule of other payables and other current liabilities

 

   2019   2018 
Accrued salaries and social welfare  $663,929   $337,599 
Accrued expenses   572,932    388,572 
Reimbursed employee's expense   27,460    50,228 
Deposits from customers   253,014    198,907 
Others   13,138    1,813 
Total accrued expenses and other current liabilities  $1,530,473   $977,119