| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Dec 8, 2023 | Dec 8, 2023 | 000-27687 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jun 20, 2023 | Jun 15, 2023 | 000-27687 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Aug 18, 2022 | Aug 16, 2022 | 000-27687 |
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | Aug 12, 2022 | Aug 3, 2022 | 000-27687 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2020 | May 19, 2020 | 001-34170 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2019 | Nov 11, 2019 | 001-34170 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2019 | May 22, 2019 | 001-34170 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2018 | Sep 30, 2018 | 001-34170 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 11, 2017 | Oct 9, 2017 | 001-34170 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 11, 2017 | Oct 9, 2017 | 001-34170 |
| 4 | Open Document | Open Filing | FORM 4 - | May 13, 2015 | May 12, 2015 | 001-10560 |
| 4 | Open Document | Open Filing | FORM 4 - | Dec 3, 2014 | Dec 2, 2014 | 001-10560 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 28, 2014 | Nov 25, 2014 | 001-10560 |
| 4 | Open Document | Open Filing | FORM 4 - | May 9, 2014 | May 7, 2014 | 001-10560 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 4, 2014 | Feb 28, 2014 | 001-10560 |