| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2022 | 31 Dec 2021 | 000-55779 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Nov 2021 | 24 Nov 2021 | 000-55779 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2020 | 18 Feb 2020 | 000-55779 |