| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2023 | 10 Mar 2023 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2022 | 11 Mar 2022 | 000-18655 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jun 2021 | 03 Jun 2021 | 000-18655 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2021 | 13 May 2021 | 000-18655 |