| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jan 4, 2022 | Jan 3, 2022 | 001-09043 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Dec 31, 2020 | 001-09043 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 25, 2017 | Aug 23, 2017 | 001-09043 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Aug 11, 2017 | Aug 8, 2017 | 001-09043 |