| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 12, 2025 | Jun 11, 2025 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 12, 2024 | Dec 11, 2024 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 13, 2024 | Jun 12, 2024 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 14, 2023 | Dec 13, 2023 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 15, 2023 | Jun 14, 2023 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 10, 2023 | May 9, 2023 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 27, 2023 | Apr 27, 2023 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2022 | Apr 27, 2022 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 29, 2020 | Apr 28, 2020 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 11, 2018 | Jun 1, 2018 | 000-15204 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2018 | Jun 1, 2017 | 000-15204 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2018 | Feb 27, 2018 | 000-15204 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2017 | May 9, 2017 | 000-15204 |