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Shareholders’ equity (Tables) | 6 Months Ended
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Jun. 30, 2025
Stockholders' Equity Note [Abstract] |
Schedule of stock based compensation expense | The table below summarizes information about the Company’s stock-based compensation for the three and six months ended June 30, 2025 and 2024 and the expense recognized in the condensed consolidated statements of operations:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
| (in thousands, except share and per share data)
Stock options |  |  |  |  |  |  |
Options granted during period | 762,400 |  |  | 424,200 |  |  | 4,706,122 |  |  | 4,163,000 |
Weighted average exercise price | $ | 3.34 |  |  | $ | 3.27 |  |  | $ | 3.32 |  |  | $ | 2.49 |
Restricted stock units (RSUs) |  |  |  |  |  |  |
Restricted stock units granted during period | — |  |  | — |  |  | 901,900 |  |  | 1,316,200 |
Grant date fair value | $ | — |  |  | $ | — |  |  | $ | 3.29 |  |  | $ | 2.40 |
Stock compensation expense |  |  |  |  |  |  |
Research and development | $ | 374 |  |  | $ | 1,119 |  |  | $ | 929 |  |  | $ | 2,160 |
General and administrative | 390 |  |  | 2,061 |  |  | 1,128 |  |  | 3,034 |
Total stock compensation expense | $ | 764 |  |  | $ | 3,180 |  |  | $ | 2,057 |  |  | $ | 5,194 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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