XML 23 R11.htm IDEA: XBRL DOCUMENT v3.10.0.1
Prepayments and Other Receivables
 6 Months Ended
Jun. 30, 2018
Prepayments and Other Receivables [Text Block]
5.

Prepayments and Other Receivables

Prepayments and other receivables as of December 31, 2017 and June 30, 2018 consisted of the following:

    December 31,     June 30,  
    2017     2018  
Value added tax recoverable $ 5,963,506   $ 6,185,637  
Prepayments to suppliers   706,488     722,526  
Deposits   25,922     60,049  
Staff advances   59,942     90,365  
Prepaid operating expenses   185,690     494,056  
Others   37,262     -  
    6,978,810     7,552,633  
Less: Allowance for doubtful accounts   (7,000 )   (7,000 )
  $ 6,971,810   $ 7,545,633