| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2022 | Jun 2, 2022 | 000-20402 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 13, 2021 | Jan 13, 2021 | 000-20402 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2020 | Nov 3, 2020 | 000-20402 |