| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D | Jun 20, 2023 | ||
| 4 | Open Document | Open Filing | Jun 20, 2023 | Jun 14, 2023 | 000-54649 | |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | Dec 20, 2021 | ||
| 4 | Open Document | Open Filing | Dec 20, 2021 | Dec 10, 2021 | 000-54649 | |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2020 | Nov 12, 2019 | 000-54649 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 26, 2019 | Nov 12, 2019 | 000-54649 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 23, 2019 | Nov 12, 2019 | 000-54649 |