| 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 24, 2025 | Apr 22, 2025 | 000-03683 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Apr 25, 2024 | Apr 23, 2024 | 000-03683 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Apr 27, 2023 | Apr 25, 2023 | 000-03683 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Apr 28, 2022 | Apr 26, 2022 | 000-03683 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Feb 19, 2021 | Feb 17, 2021 | 000-03683 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2020 | Feb 19, 2020 | 000-03683 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2020 | Dec 31, 2019 | 000-03683 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2019 | Feb 14, 2019 | 000-03683 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2019 | Dec 31, 2018 | 000-03683 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2018 | Feb 15, 2018 | 000-03683 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2017 | Apr 25, 2017 | 000-03683 |