Share capital, stock options and other stock-based plans - Stock-based compensation (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Compensation expense | $ 168 | $ 285 |
| Stock-based compensation - equity or cash settled | 86 | 212 |
| Stock-based compensation - cash settled only | 82 | 73 |
| Research and development | ||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Compensation expense | 8 | 13 |
| General and administrative | ||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Compensation expense | 160 | 247 |
| Sales and marketing | ||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Compensation expense | $ 0 | $ 25 |