Income taxes (Details 3) |
Nov. 30, 2021
USD ($)
|
|---|---|
| Operating loss carryforwards | $ 61,598,314 |
| 2029 | |
| Operating loss carryforwards | 609,497 |
| 2030 | |
| Operating loss carryforwards | 3,717,403 |
| 2031 | |
| Operating loss carryforwards | 6,154,180 |
| 2032 | |
| Operating loss carryforwards | 6,410,970 |
| 2033 | |
| Operating loss carryforwards | 4,984,768 |
| 2034 | |
| Operating loss carryforwards | 149,927 |
| 2035 | |
| Operating loss carryforwards | 2,634,823 |
| 2036 | |
| Operating loss carryforwards | 3,404,504 |
| 2037 | |
| Operating loss carryforwards | 4,328,444 |
| 2038 | |
| Operating loss carryforwards | 11,231,494 |
| 2039 | |
| Operating loss carryforwards | 3,111,826 |
| 2040 | |
| Operating loss carryforwards | 9,891,661 |
| 2041 | |
| Operating loss carryforwards | $ 4,968,817 |