Capital stock (Details 2) |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
$ / shares
| |
| $1.10 | |
| Statement [Line Items] | |
| Number of shares outstanding | 60,000 |
| Weighted average remaining contractual life (in years) | 6 months 29 days |
| Weighted average exercise price | $ 1.10 |
| Options exercisable | 60,000 |
| $1.11 - $1.50 | |
| Statement [Line Items] | |
| Number of shares outstanding | 1,102,000 |
| Weighted average remaining contractual life (in years) | 7 years 25 days |
| Weighted average exercise price | $ 1.25 |
| Options exercisable | 522,000 |
| $1.51 ? $2.00 | |
| Statement [Line Items] | |
| Number of shares outstanding | 1,162,000 |
| Weighted average remaining contractual life (in years) | 6 years 8 months 26 days |
| Weighted average exercise price | $ 1.23 |
| Options exercisable | 582,000 |