| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2022 | Feb 15, 2022 | 000-20322 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jan 28, 2022 | Nov 23, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 24, 2021 | Nov 23, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2021 | Nov 15, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 15, 2021 | Nov 11, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2021 | Nov 9, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2021 | Feb 16, 2021 | 000-20322 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2021 | Jan 12, 2021 | 000-20322 |