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General and administrative expenses (Tables)
 12 Months Ended
Dec. 31, 2018
Text Block [Abstract]  
Schedule of major classes of general and administrative expenses

The following table shows the major classes of general and administrative expenses for fiscal years ended December 31, 2018 and 2017:

 

     Fiscal years  
     2018      2017  

Legal costs

    $ 896,489    $ 249,275

Professional fees

      282,153      117,840

Rent

      72,368      102,826

Payroll expenses

      823,966      699,311

Other general and administrative expenses

      273,385      301,815
  

 

 

     

 

 

  

Total general and administrative expenses

    $ 2,348,361    $ 1,471,067