| 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 | Apr 4, 2023 | Apr 1, 2023 | 000-23357 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Apr 5, 2022 | Apr 1, 2022 | 000-23357 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 7, 2022 | Aug 2, 2021 | 000-23357 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 5, 2021 | Apr 1, 2021 | 000-23357 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 3, 2020 | Apr 1, 2020 | 000-23357 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 20, 2020 | Feb 20, 2020 | 000-23357 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 12, 2019 | Feb 8, 2019 | 000-23357 |
| 4 | Open Document | Open Filing | FORM 4 - | Oct 31, 2017 | Oct 27, 2017 | 000-23357 |