| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2023 | 09 May 2023 | 000-14690 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2022 | 10 May 2022 | 000-14690 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2021 | 11 May 2021 | 000-14690 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2021 | 11 May 2021 | 000-14690 |