| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 9, 2024 | Jan 5, 2023 | 000-25969 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 23, 2023 | Feb 6, 2023 | 000-25969 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2023 | Feb 6, 2023 | 000-25969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 8, 2023 | Feb 6, 2023 | 000-25969 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 30, 2022 | Sep 27, 2022 | 000-25969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 29, 2022 | Sep 27, 2022 | 000-25969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2021 | Jan 6, 2021 | 000-25969 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2020 | Oct 18, 2019 | 000-25969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 29, 2020 | Jan 6, 2020 | 000-25969 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Dec 28, 2018 | Dec 18, 2018 | 000-25969 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Aug 15, 2018 | Aug 15, 2018 | 000-25969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 7, 2018 | Jun 1, 2018 | 000-25969 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Feb 16, 2018 | Dec 31, 2017 | 000-25969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 21, 2017 | Aug 7, 2017 | 000-25969 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Feb 15, 2017 | Dec 31, 2016 | 000-25969 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Feb 13, 2015 | Dec 31, 2014 | 000-25969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 10, 2014 | Oct 6, 2014 | 000-25969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 14, 2014 | Jan 10, 2014 | 000-25969 |