| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2022 | 03 Jan 2022 | 000-53548 |
| 4 | Open Document | Open Filing | 06 Oct 2021 | 01 Oct 2021 | 000-53548 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jul 2021 | 02 Jul 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2021 | 12 Apr 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2021 | 11 Jan 2021 | 000-53548 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Apr 2021 | 19 Aug 2020 | 000-53548 |