Schedule of Assumptions Used to Calculate Fair Value of Stock Based Compensation (Details) |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Oct. 31, 2022 |
Oct. 31, 2021 |
Jul. 31, 2022 |
Jul. 31, 2021 |
|
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||||
| Risk-free interest rate, minimum | 4.07% | 0.69% | 0.69% | 0.27% |
| Risk-free interest rate, maximum | 4.09% | 0.92% | 2.99% | 1.13% |
| Volatility, minimum | 89.96% | 86.98% | 86.98% | 85.31% |
| Volatility, maximum | 91.75% | 88.89% | 91.70% | 89.08% |
| Dividend yield | 0.00% | 0.00% | 0.00% | 0.00% |
| Minimum [Member] | ||||
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||||
| Expected term (years) | 5 years 1 month 13 days | 5 years 1 month 17 days | 5 years | 5 years |
| Maximum [Member] | ||||
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||||
| Expected term (years) | 5 years 5 months 26 days | 6 years | 6 years 6 months | 6 years 6 months |