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Equity (Tables)
 6 Months Ended
Sep. 30, 2024
Disclosure of terms and conditions of share-based payment arrangement [Line Items]  
Schedule of changes in stock options outstanding [Table Text Block]
        Weighted average
  Outstanding     exercise price
Balance, March 31, 2023        3,073,415   C$ 6.20
   Granted 620,000     6.86
   Expired (2,400)     6.09
   Forfeited (202,600)     24.75
   Exercised (22,500)     5.66
Balance, March 31, 2024        3,465,915   C$ 5.24
   Expired (54,615)     9.76
Balance, September 30, 2024        3,411,300   C$ 5.17
Schedule of stock options outstanding and exercisable [Table Text Block]
Outstanding    Exercisable   Exercise price   Expiry date
            2,000   2,000 C$ 15.70   February 11, 2026
         387,900              387,900   5.66   August 26, 2027
      1,000,000           1,000,000   1.50   September 14, 2027
           50,000                50,000   10.00   March 26, 2028
         600,000              600,000   6.86   July 6, 2028
         400,000              400,000   3.10   September 18, 2028
         100,000              100,000   1.35   December 21, 2028
         500,000              500,000   1.45   February 10, 2030
           20,000                20,000   1.90   May 29, 2030
            1,400                 1,400   10.80   December 24, 2030
           30,000                30,000   25.15   April 6, 2031
           60,000                60,000   18.35   April 29, 2031
         180,000                108,000   18.50   October 7, 2031
           60,000                40,000   25.35   November 10, 2031
           20,000                20,000   21.00   December 9, 2031
      3,411,300   3,319,300        
Schedule of warrants outstanding and exercisable [Table Text Block]
Outstanding   Exercisable Exercise price   Expiry date
2,875,000 *** 2,875,000 C$           6.00   December 28, 2026
345,000 *** 345,000 C$           5.00   December 28, 2026
3,220,000   3,220,000      
Warrants [member]  
Disclosure of terms and conditions of share-based payment arrangement [Line Items]  
Schedule of changes in other equity instruments outstanding [Table Text Block]
     Warrants     Weighted average  
    outstanding     exercise price  
Balance, March 31, 2022 and 2023   3,573,727     C$             22.92  
   Grants   3,220,000     5.89  
   Expired   (1,550,000 )   13.69  
Balance, March 31, 2024   5,243,727     C$             15.20  
   Expired   (2,023,727 )   30.00  
Balance, September 30, 2024   3,220,000     C$               5.89  
Restricted share units [Member]  
Disclosure of terms and conditions of share-based payment arrangement [Line Items]  
Schedule of changes in other equity instruments outstanding [Table Text Block]
    Outstanding  
Balance, March 31, 2023   1,928,530  
   Granted   257,976  
   Cancelled    (3,000 )
   Exercised   (802,650 )
   Expired   (1,800 )
Balance, March 31, 2024   1,379,056  
   Granted   2,491,000  
   Exercised   (108,100 )
Balance, September 30, 2024   3,761,956