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SEGMENTED INFORMATION (Details) - Schedule of Segment Information for Assets and Liabilities - USD ($)
$ in Thousands
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
SEGMENTED INFORMATION (Details) - Schedule of Segment Information for Assets and Liabilities [Line Items]      
Current assets $ 232,308 $ 221,189  
Plant and equipment 79,418 75,729  
Mineral rights and properties 326,448 277,429  
Investment in an associate 56,841 53,457  
Other investments 17,768 15,733  
Reclamation deposits 8,876 8,513  
Long-term prepaids and deposits 974 409  
Long-term portion of lease receivable 183  
Deferred income tax assets 905    
Total assets 723,538 652,642  
Current liabilities 46,038 37,175  
Long-term portion of lease obligation 614 1,084  
Deferred income tax liabilities 48,033 40,792  
Environmental rehabilitation 8,739 7,863 $ 8,700
Total liabilities 103,424 86,914  
Mining Henan Luoning [Member]      
SEGMENTED INFORMATION (Details) - Schedule of Segment Information for Assets and Liabilities [Line Items]      
Current assets 141,376 124,636  
Plant and equipment 58,189 53,651  
Mineral rights and properties 254,071 225,023  
Investment in an associate  
Other investments 72 2,289  
Reclamation deposits 3,996 3,898  
Long-term prepaids and deposits 588 221  
Long-term portion of lease receivable    
Deferred income tax assets    
Total assets 458,292 409,718  
Current liabilities 37,161 28,654  
Long-term portion of lease obligation  
Deferred income tax liabilities 46,849 39,756  
Environmental rehabilitation 6,053 6,115  
Total liabilities 90,063 74,525  
Mining Hunan [Member]      
SEGMENTED INFORMATION (Details) - Schedule of Segment Information for Assets and Liabilities [Line Items]      
Current assets 870 909  
Plant and equipment 3,708 3,833  
Mineral rights and properties 7,571 7,345  
Investment in an associate  
Other investments  
Reclamation deposits  
Long-term prepaids and deposits 104 101  
Long-term portion of lease receivable    
Deferred income tax assets    
Total assets 12,253 12,188  
Current liabilities 545 625  
Long-term portion of lease obligation  
Deferred income tax liabilities 1,184 1,036  
Environmental rehabilitation 1,044 993  
Total liabilities 2,773 2,654  
Mining Guangdong [Member]      
SEGMENTED INFORMATION (Details) - Schedule of Segment Information for Assets and Liabilities [Line Items]      
Current assets 14,919 11,177  
Plant and equipment 15,282 15,765  
Mineral rights and properties 32,091 28,314  
Investment in an associate  
Other investments  
Reclamation deposits 4,872 4,607  
Long-term prepaids and deposits 282 87  
Long-term portion of lease receivable    
Deferred income tax assets 905    
Total assets 68,351 59,950  
Current liabilities 5,155 4,570  
Long-term portion of lease obligation  
Deferred income tax liabilities  
Environmental rehabilitation 1,642 755  
Total liabilities 6,797 5,325  
Mining Other [Member]      
SEGMENTED INFORMATION (Details) - Schedule of Segment Information for Assets and Liabilities [Line Items]      
Current assets 1,566 191  
Plant and equipment 163 59  
Mineral rights and properties 32,715 16,747  
Investment in an associate  
Other investments  
Reclamation deposits  
Long-term prepaids and deposits  
Long-term portion of lease receivable    
Deferred income tax assets    
Total assets 34,444 16,997  
Current liabilities 2  
Long-term portion of lease obligation  
Deferred income tax liabilities  
Environmental rehabilitation  
Total liabilities 2  
Administrative Beijing [Member]      
SEGMENTED INFORMATION (Details) - Schedule of Segment Information for Assets and Liabilities [Line Items]      
Current assets 8,570 4,322  
Plant and equipment 864 965  
Mineral rights and properties  
Investment in an associate  
Other investments  
Reclamation deposits  
Long-term prepaids and deposits  
Long-term portion of lease receivable    
Deferred income tax assets    
Total assets 9,434 5,287  
Current liabilities 295 112  
Long-term portion of lease obligation  
Deferred income tax liabilities  
Environmental rehabilitation  
Total liabilities 295 112  
Administrative Vancouver [Member]      
SEGMENTED INFORMATION (Details) - Schedule of Segment Information for Assets and Liabilities [Line Items]      
Current assets 65,007 79,954  
Plant and equipment 1,212 1,456  
Mineral rights and properties  
Investment in an associate 56,841 53,457  
Other investments 17,696 13,444  
Reclamation deposits 8 8  
Long-term prepaids and deposits  
Long-term portion of lease receivable   183  
Deferred income tax assets    
Total assets 140,764 148,502  
Current liabilities 2,880 3,214  
Long-term portion of lease obligation 614 1,084  
Deferred income tax liabilities  
Environmental rehabilitation  
Total liabilities $ 3,494 $ 4,298