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SHARE-BASED COMPENSATION (Tables) | 6 Months Ended
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Jun. 30, 2025
SHARE-BASED COMPENSATION |
Summary of the activity of share options | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | Weighted |  | ​ | ​
​ |  | ​ |  | Weighted |  | Average |  | ​ | ​
​ |  | ​ |  | Average |  | Remaining |  | ​ | ​
​ | ​ | Number of |  | Exercise |  | Contractual | ​ | Aggregate
​ | ​ | Share |  | Price Per |  | Term | ​ | Intrinsic
​ | ​ | Options | ​ | Share |  | (years) | ​ | Value
Outstanding as of January 1, 2024 |  | 898,262 | ​ | $ | 7.58 |  | 6.5 | ​ | $ | —
Expired |  | (79,769) | ​ |  | 9.16 |  | ​ | ​ |  | ​
Outstanding as of December 31, 2024 |  | 818,493 | ​ | ​ | 7.36 |  | 6.6 | ​ | ​ | —
Outstanding as of June 30, 2025 |  | 818,493 | ​ |  | 7.33 |  | 6.4 | ​ | ​ | —
Vested and exercisable as of June 30, 2025 |  | 789,869 | ​ | $ | 7.46 |  | 6.4 | ​ | $ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | Weighted |  | ​ | ​
​ |  | ​ |  | Weighted |  | Average |  | ​ | ​
​ |  | ​ |  | Average |  | Remaining |  | ​ | ​
​ | ​ | Number of |  | Exercise |  | Contractual | ​ | Aggregate
​ | ​ | Share |  | Price Per |  | Term | ​ | Intrinsic
​ | ​ | Options | ​ | Share |  | (years) | ​ | Value
Outstanding as of January 1, 2024 |  | 69,000 | ​ | $ | 1.87 |  | ​ | ​ | $ | —
Granted |  | 2,686,960 | ​ |  | 1.11 |  | ​ | ​ |  | ​
Outstanding as of December 31, 2024 |  | 2,755,960 | ​ | ​ | 1.13 |  | ​ | ​ | ​ | —
Granted |  | 195,000 | ​ |  | 0.61 |  |  | ​ |  | —
Forfeited |  | (8,594) | ​ |  | 1.87 |  | ​ | ​ |  | ​
Outstanding as of June 30, 2025 |  | 2,942,366 | ​ |  | 1.09 |  | 9.3 | ​ | ​ | —
Vested and exercisable as of June 30, 2025 |  | 817,774 | ​ | $ | 1.17 |  | 9.1 | ​ | $ | —
Summary of share-based compensation liability activity | ​
​ | ​ | ​ | ​
​ |  | June 30,
​ | ​ | 2025
Fair value at December 31, 2024 | ​ | $ | 199,263
Increase in additional paid-in-capital due to decrease in fair value of share-based compensation liability | ​ | ​ | (136,868)
Fair value at June 30, 2025 | ​ | $ | 62,395
​
​ | ​ | ​ | ​
​ |  | December 31,
​ | ​ | 2024
Fair value at December 31, 2023 | ​ | $ | 422,002
Increase in additional paid-in-capital due to decrease in fair value of share-based compensation liability | ​ | ​ | (222,739)
Fair value at December 31, 2024 | ​ | $ | 199,263
Summary of fair value of share options granted estimated using Black Scholes with the assumptions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Period Ended
​ | ​ | June 30, | ​ | December 31, | ​
​ |  | 2025 |  | 2024 | ​
Weighted average fair value of C$ Options | ​ | C$ | 0.08 | ​ | C$ | 0.26 | ​
Expected volatility |  | ​ | 96.0 | % | ​ | 99.7 | %
Risk-free interest rate |  | ​ | 3.95 | % | ​ | 4.40 | %
Expected dividend yield |  | ​ | — | % | ​ | — | %
Expected term (years) |  | ​ | 6.4 |  | ​ | 6.6 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Period Ended
​ | ​ | June 30, | ​ | June 30, | ​
​ | ​ | 2025 | ​ | 2024 | ​
Weighted average fair value of US$ Options | ​ | $ | 0.48 | ​ | $ | 0.91 | ​
Expected volatility | ​ | ​ | 100.8 | % | ​ | 98.6 | %
Risk-free interest rate | ​ | ​ | 3.86 | % | ​ | 3.90 | %
Expected dividend yield | ​ | ​ | — | % | ​ | — | %
Expected term (years) | ​ | ​ | 5.7 |  | ​ | 5.8 |
Summary of total share-based compensation | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 | ​
Research and development | ​ | $ | 37,883 | ​ | $ | 3,813 | ​ | $ | 75,557 | ​ | $ | 7,625 | ​
General and administrative | ​ |  | 174,132 | ​ |  | 14,186 | ​ |  | 381,753 | ​ |  | 73,958 | ​
Total share-based compensation | ​ | $ | 212,015 | ​ | $ | 17,999 | ​ | $ | 457,310 | ​ | $ | 81,583 | ​

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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