| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2024 | May 15, 2024 | 000-17820 |
| 5 | Open Document | Open Filing | ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | Jan 30, 2024 | Dec 31, 2023 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Nov 14, 2023 | Nov 13, 2023 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jan 20, 2023 | Jan 18, 2023 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Oct 26, 2022 | Oct 19, 2022 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jan 21, 2022 | Jan 19, 2022 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Oct 20, 2021 | Oct 15, 2021 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jan 22, 2021 | Jan 20, 2021 | 000-17820 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Oct 29, 2020 | Oct 28, 2020 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 16, 2020 | Jan 15, 2020 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 6, 2019 | Oct 30, 2019 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 17, 2019 | Jan 16, 2019 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2018 | Nov 1, 2018 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2018 | Feb 9, 2018 | 000-17820 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 24, 2018 | Jan 17, 2018 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2018 | Jan 17, 2018 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 3, 2017 | Aug 2, 2017 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 20, 2017 | Jan 18, 2017 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2016 | Dec 1, 2016 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 10, 2016 | Nov 10, 2016 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2016 | Feb 24, 2016 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 6, 2015 | Nov 2, 2015 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2014 | Nov 11, 2014 | 000-17820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 7, 2014 | Nov 6, 2014 | 000-17820 |