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Financial Risk (Details 15)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of financial assets [line items]    
Net liquid assets ratio 249.42% 52.48%
Average    
Disclosure of financial assets [line items]    
Net liquid assets ratio 115.98% 37.82%
Maximum    
Disclosure of financial assets [line items]    
Net liquid assets ratio 249.42% 53.38%
Minimum    
Disclosure of financial assets [line items]    
Net liquid assets ratio 53.26% 23.23%