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Payroll and social securities payable
12 Months Ended
Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]  
Payroll and social security liabilities Payroll and social security liabilities
 20202019
Non-current  
Social security payable1,075 1,209 
 1,075 1,209 
Current  
Salaries payable2,774 3,290 
Social security payable2,827 3,025 
Provision for vacations6,866 8,808 
Provision for bonuses10,866 10,085 
 23,333 25,208 
Total payroll and social security liabilities24,408 26,417