| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jul 6, 2022 | Jul 1, 2022 | 000-55084 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 7, 2020 | Jan 3, 2020 | 000-55084 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2017 | Mar 1, 2017 | 000-55084 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2015 | Feb 18, 2015 | 000-55084 |