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ENVIRONMENTAL REHABILITATION (Tables)
12 Months Ended
Mar. 31, 2022
Disclosure of interest in funds [text block] [Abstract]  
Schedule of Reconciliation of Obligations Associated Retirement Properties
   Total 
Balance, April 1, 2020  $8,700 
Reclamation expenditures   (189)
Unwinding of discount of environmental rehabilitation   251 
Revision of provision   (1,610)
Foreign exchange impact   711 
Balance, March 31, 2021  $7,863 
Reclamation expenditures   (467)
Unwinding of discount of environmental rehabilitation   269 
Revision of provision   812 
Foreign exchange impact   262 
Balance, March 31, 2022  $8,739