Significant accounting policies (Details) |
3 Months Ended |
|---|---|
Nov. 30, 2021 | |
| Farm facility and equipment [Member] | Minimum [Member] | |
| Estimated useful lives | 1 year |
| Farm facility and equipment [Member] | Maximum [Member] | |
| Estimated useful lives | 10 years |
| Office and Computer Equipment [Member] | Minimum [Member] | |
| Estimated useful lives | 5 years |
| Office and Computer Equipment [Member] | Maximum [Member] | |
| Estimated useful lives | 10 years |
| Land Equipment [Member] | |
| Estimated useful lives | 10 years |