| Schedule
of option activity | |
| | | |
| | | |
| | | |
| | |
| | |
Number of shares | | |
Weighted- average exercise price | | |
Weighted- average remaining life (years) | | |
Aggregate intrinsic value | |
| Outstanding as of January 1, 2024 | |
| 201,388 | | |
$ | 36.46 | | |
| 7.69 | | |
$ | – | |
| Granted | |
| 30,000 | | |
| 4.07 | | |
| | | |
| | |
| Expired | |
| (32,535 | ) | |
| (61.90 | ) | |
| | | |
| | |
| Outstanding as of December 31, 2024 | |
| 198,853 | | |
$ | 27.41 | | |
| 4.28 | | |
$ | 3,300 | |
| Granted | |
| 10,000 | | |
| 2.17 | | |
| | | |
| | |
| Expired | |
| (93,231 | ) | |
| (36.45 | ) | |
| | | |
| | |
| Outstanding as of December 31, 2025 | |
| 115,622 | | |
$ | 17.95 | | |
| 7.01 | | |
$ | – | |
| | |
| | | |
| | | |
| | | |
| | |
| Vested or expected to vest as of December 31, 2025 | |
| 115,622 | | |
$ | 17.95 | | |
| 7.01 | | |
$ | – | |
| | |
| | | |
| | | |
| | | |
| | |
| Exercisable as of December 31, 2024 | |
| 166,770 | | |
$ | 31.84 | | |
| 3.28 | | |
$ | 2,567 | |
| Exercisable as of December 31, 2025 | |
| 92,288 | | |
$ | 21.57 | | |
| 6.49 | | |
$ | – | |