Options (Details 1) - $ / shares |
12 Months Ended | |||
|---|---|---|---|---|
Nov. 30, 2021 |
Nov. 30, 2020 |
Nov. 30, 2019 |
Dec. 31, 2018 |
|
| Options | ||||
| Options outstanding, ending | 2,353,829 | 1,697,638 | ||
| Expired | (44,900) | (329,694) | ||
| Cancelled | (156,572) | (28,432) | ||
| Forfeited | (6,666) | (60,390) | ||
| Options exercisable | 1,489,500 | 1,231,309 | 1,122,189 | |
| Weighted average exercise price outstanding, ending | $ 2.92 | $ 8.35 | ||
| Expired | $ 0.00 | 31.54 | ||
| Cancelled | 0.38 | |||
| Forfeited | 0.00 | 0.35 | 1.41 | |
| Weighted average exercise price exercisable | $ 8.35 | |||
| Weighted average grant date fair value, ending | 1.99 | 4.30 | ||
| Expired | 0.00 | 19.68 | 14.27 | |
| Cancelled | 0.78 | |||
| Forfeited | $ 0.00 | 0.22 | 0.80 | |
| Weighted average grant date fair value exercisable | $ 2.64 | $ 4.30 | ||