XML 383 R151.htm IDEA: XBRL DOCUMENT v3.22.1
Note 37 - Group Entities (Details Textual)
12 Months Ended
Feb. 20, 2012
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Statement Line Items [Line Items]        
Proportion of ownership interests held by non-controlling interests 51.00% 36.00%    
Blanket Mine (1983) (Private) Limited [member]        
Statement Line Items [Line Items]        
Proportion of ownership interests held by non-controlling interests   13.20% 13.20% 16.20%