| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jul 15, 2022 | Jul 14, 2022 | 000-55504 | |
| 4 | Open Document | Open Filing | Jul 15, 2021 | Jul 13, 2021 | 000-55504 | |
| 3 | Open Document | Open Filing | OWENRSHIP DOCUMENT | Mar 17, 2020 | Mar 10, 2020 | 000-55504 |