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Payroll and social securities payable
 12 Months Ended
Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]  
Payroll and social security liabilities
Payroll and social security liabilities
 
2018
 
2017
Non-current
 

 
 

Social security payable
1,219

 
1,240

 
1,219

 
1,240

Current
 

 
 

Salaries payable
8,841

 
6,199

Social security payable
3,112

 
3,702

Provision for vacations
9,770

 
12,323

Provision for bonuses
4,255

 
5,043

 
25,978

 
27,267

Total payroll and social security liabilities
27,197

 
28,507