v3.26.1
Shareholders’ equity and reserves (Tables)
6 Months Ended
Jun. 30, 2026
Notes and other explanatory information [abstract]  
Summary of stock option activity
       
    Period ended
June 30, 2026
  Year ended
December 31, 2025
    Options  Weighted
average
exercise price
  Options  Weighted
average
exercise price
    #    $    #      
Options outstanding, beginning of period/year   806,061    0.70    528,283    0.69 
Granted   454,040    0.54    277,778    0.50 
Expired   (252,525)   0.83         
Options outstanding, end of period/year   1,007,576    0.58    806,061    0.70 
Summary of stock options outstanding and exercisable
            
Options  Options  Exercise     Weighted average
outstanding  exercisable  price  Expiry date  remaining life
#  #  $     (years)
25,253   25,253    0.69   January 16, 2028   1.55 
73,737   73,737    0.59   August 24, 2032   6.16 
176,768   176,768    0.79   October 12, 2032   6.29 
277,778   277,778    0.50   June 12, 2035   8.96 
204,040   204,040    0.59   March 19, 2036   9.73 
250,000   250,000    0.49   April 16, 2036   9.80 
1,007,576   1,007,576    0.58       8.33 
Summary of changes in warrants
         
   Period ended
June 30, 2026
  Year ended
December 31, 2025
   
    Warrants    Weighted
average
exercise price
    Warrants    Weighted
average
exercise price
    Warrant
liability
 
    #    $    #    $    $ 
Warrants outstanding, beginning of period/year   3,926,930    0.99    3,665,657    1.06    857,250 
Issued - unit offerings           2,578,188    0.91    1,201,281 
Issued - finders' warrants           284,095    0.94     
Expired           (2,601,010)   1.01    (310,494)
Fair value adjustment for warrants outstanding                   84,154 
Warrants outstanding, end of period/year   3,926,930    0.99    3,926,930    0.99    1,832,191 
Summary of warrants outstanding and exercisable
           
Warrants  Exercise     Weighted average
outstanding  price  Expiry date  remaining life
#  $     (years)
48,485   1.19  October 25, 2026   0.32 
606,061   1.19  October 25, 2027   1.32 
326,263   1.19  December 3, 2027   1.43 
1,601,005   0.89  December 4, 2027   1.43 
192,320   0.89  December 4, 2027   1.43 
445,286   0.89  December 12, 2027   1.45 
364,119   0.89  December 18, 2027   1.47 
43,290   0.89  December 18, 2027   1.47 
132,323   1.19  December 23, 2027   1.48 
167,778   1.19  June 30, 2028   2.00 
3,926,930   0.99      1.43