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Share capital (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Share capital |
Schedule of issued and outstanding common shares (with no par value) | ​
​ | ​ | ​ | ​ | ​
​ |  | 2023 |  | 2022
​ | ​ | $ | ​ | $
​ | ​ | ​ | ​ | ​
21,370,565 (2022 – 20,879,497) common shares |  | 217,393 |  | 205,825
Schedule of warrants outstanding | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Weighted | ​ | average
​ | ​ | ​ | ​ | average | ​ | remaining
​ | ​ | ​ | ​ | exercise | ​ | contractual
​ | ​ | Number of | ​ | price | ​ | life
​ |  | warrants |  | C$ |  | (years)
​ | ​ | ​ | ​ | ​ | ​ | ​
Balance – January 1, 2022 |  | 724,983 |  | 13.81 |  | 1.23
Granted | ​ | 47,287 | ​ | 5.29 | ​ | 9.80
Balance – December 31, 2022 | ​ | 772,270 | ​ | 13.29 | ​ | 0.82
Expired | ​ | (458,477) | ​ | 14.00 | ​ | —
Exercised | ​ | (313,793) | ​ | 13.48 | ​ | —
Balance – December 31, 2023 |  | — |  | — |  | —
​

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