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General and Administrative Expenses
12 Months Ended
Dec. 31, 2020
General And Administrative Expense [Abstract]  
General and Administrative Expenses

22. General and Administrative Expenses

General and administrative expenses are comprised of the following items:

 

 

 

Year ended December 31,

 

 

 

2020

 

 

2019

 

 

2018

 

Salaries and benefits

 

$

31,553

 

 

$

39,565

 

 

$

11,721

 

Stock-based compensation expenses

 

 

20,491

 

 

 

26,499

 

 

 

18,926

 

Other expenses

 

 

17,869

 

 

 

16,649

 

 

 

8,152

 

Professional fees

 

 

12,773

 

 

 

21,189

 

 

 

7,557

 

Loss on disposal of property and equipment

 

 

1,851

 

 

 

2,436

 

 

 

190

 

Travel expenses

 

 

937

 

 

 

4,565

 

 

 

2,031

 

Credit loss expenses

 

 

409

 

 

 

 

 

 

 

Total

 

$

85,883

 

 

$

110,903

 

 

$

48,577