| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 9, 2022 | Jul 31, 2022 | 000-55862 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2022 | Jul 31, 2021 | 000-55862 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2020 | Jul 31, 2019 | 000-55862 |