| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | null | Apr 22, 2025 | Apr 17, 2025 | 001-08061 |
| 4 | Open Document | Open Filing | Nov 4, 2024 | Oct 31, 2023 | 001-08061 | |
| 4 | Open Document | Open Filing | Oct 27, 2021 | Oct 25, 2021 | 001-08061 | |
| 4 | Open Document | Open Filing | Mar 22, 2021 | Mar 22, 2021 | 001-08061 | |
| 4 | Open Document | Open Filing | Sep 19, 2019 | Sep 18, 2019 | 001-08061 | |
| 4 | Open Document | Open Filing | Jan 14, 2019 | Jan 8, 2019 | 001-08061 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 23, 2016 | Aug 19, 2016 | 001-08061 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2015 | Apr 30, 2015 | 001-08061 |