| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2021 | 27 Aug 2021 | 000-28274 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2021 | 30 Jun 2021 | 000-28274 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2021 | 19 May 2021 | 000-28274 |