Consolidated Statements of Stockholders' Equity (Parenthetical) |
12 Months Ended |
|---|---|
|
Jul. 31, 2021
USD ($)
| |
| August 2020 [Member] | Registered Direct Offering [Member] | |
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | |
| Payments of issuance cost | $ 1,464,276 |
| January 2021 [Member] | IPO [Member] | |
| Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | |
| Payments of issuance cost | $ 2,970,165 |