| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2025 | May 15, 2025 | 000-10235 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2024 | May 16, 2024 | 000-10235 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2023 | May 18, 2023 | 000-10235 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2023 | May 18, 2023 | 000-10235 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2017 | Sep 27, 2017 | 000-51166 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 5, 2015 | Jun 1, 2015 | 000-08185 |