| 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 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 20, 2022 | Apr 18, 2022 | 000-55862 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2022 | Jan 5, 2022 | 000-55862 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2022 | Jul 31, 2021 | 000-55862 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2021 | Apr 27, 2021 | 000-55862 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2020 | Sep 22, 2020 | 000-55862 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 14, 2020 | Sep 22, 2020 | 000-55862 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2020 | Jul 31, 2020 | 000-55862 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2020 | Jan 6, 2020 | 000-55862 |