| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Oct 2021 | 01 Oct 2021 | 001-07665 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2021 | 22 Feb 2021 | 001-07665 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2020 | 10 Dec 2020 | 001-07665 |