| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2021 | Oct 12, 2021 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 13, 2021 | Aug 12, 2021 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 30, 2021 | Jun 28, 2021 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2021 | May 12, 2021 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 1, 2020 | Sep 30, 2020 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 31, 2020 | Aug 27, 2020 | 000-26076 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 8, 2020 | Jun 4, 2020 | 000-26076 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 20, 2020 | Mar 18, 2020 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 11, 2019 | Dec 10, 2019 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2019 | Jun 6, 2019 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2019 | Jun 20, 2019 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 15, 2018 | Nov 14, 2018 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 15, 2018 | Jun 14, 2018 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 11, 2018 | Jun 7, 2018 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 8, 2017 | Dec 7, 2017 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 15, 2017 | Jun 14, 2017 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2017 | Jun 1, 2017 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 23, 2016 | Nov 22, 2016 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 5, 2016 | Oct 5, 2016 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2016 | Jun 2, 2016 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 17, 2015 | Dec 16, 2015 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 18, 2015 | Jun 17, 2015 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2015 | Jun 4, 2015 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 5, 2014 | Dec 4, 2014 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 25, 2014 | Jun 24, 2014 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2014 | Jun 5, 2014 | 000-26076 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2014 | Mar 4, 2014 | 000-26076 |