| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 7, 2022 | Jun 3, 2022 | 001-07094 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 8, 2021 | Jun 4, 2021 | 001-07094 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 11, 2020 | Aug 7, 2020 | 001-07094 |
| 4 | Open Document | Open Filing | FORM 4 | May 29, 2020 | May 29, 2020 | 001-07094 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 30, 2019 | Oct 28, 2019 | 001-07094 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2019 | May 31, 2019 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 1, 2018 | May 30, 2018 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2017 | Dec 4, 2017 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2017 | Jun 9, 2017 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2017 | May 18, 2017 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 27, 2017 | Apr 25, 2017 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 9, 2016 | Dec 8, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 11, 2016 | Aug 10, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 23, 2016 | Jun 22, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2016 | Jun 3, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2016 | May 6, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 5, 2016 | May 4, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 1, 2016 | Mar 31, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2016 | Mar 2, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 28, 2016 | Jan 26, 2016 | 000-03683 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Jan 1, 2016 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2015 | Mar 5, 2015 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2015 | Feb 23, 2015 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2015 | Feb 17, 2015 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2015 | Jan 27, 2015 | 000-03683 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Jan 1, 2015 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 21, 2014 | Apr 21, 2014 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2014 | Mar 6, 2014 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2014 | Feb 18, 2014 | 001-07094 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2014 | Jan 28, 2014 | 000-03683 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 2, 2014 | Jan 1, 2014 | 001-07094 |