| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Aug 5, 2025 | Aug 1, 2025 | 000-15535 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2025 | Jun 12, 2025 | 000-15535 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2024 | Jun 13, 2024 | 000-15535 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 20, 2023 | Jun 14, 2023 | 000-15535 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 20, 2023 | Jun 14, 2023 | 000-15535 |
| 4 | Open Document | Open Filing | Sep 18, 2017 | Sep 15, 2017 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 14, 2017 | Mar 10, 2017 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 10, 2017 | Mar 8, 2017 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 9, 2017 | Mar 7, 2017 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 2, 2017 | Feb 28, 2017 | 001-15579 | |
| 4 | Open Document | Open Filing | Dec 14, 2016 | Dec 13, 2016 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 14, 2016 | Mar 14, 2016 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 10, 2016 | Mar 8, 2016 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 3, 2016 | Mar 1, 2016 | 001-15579 | |
| 4/A | Open Document | Open Filing | Mar 16, 2015 | Mar 8, 2015 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 10, 2015 | Mar 8, 2015 | 001-15579 | |
| 4/A | Open Document | Open Filing | Mar 6, 2015 | Feb 25, 2015 | 001-15579 | |
| 4 | Open Document | Open Filing | Feb 27, 2015 | Feb 25, 2015 | 001-15579 | |
| 4 | Open Document | Open Filing | Feb 25, 2015 | Feb 23, 2015 | 001-15579 | |
| 4 | Open Document | Open Filing | Mar 11, 2014 | Mar 8, 2014 | 001-15579 | |
| 4 | Open Document | Open Filing | Feb 28, 2014 | Feb 26, 2014 | 001-15579 | |
| 4 | Open Document | Open Filing | Feb 27, 2014 | Feb 24, 2014 | 001-15579 | |
| 4 | Open Document | Open Filing | Jan 3, 2014 | Jan 2, 2014 | 001-15579 |