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