| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2021 | 29 Jul 2021 | 001-34582 |
| 4 | Open Document | Open Filing | FORM 4 | 27 May 2021 | 25 May 2021 | 001-34582 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Dec 2020 | 09 Dec 2020 | 001-34582 |
| 3 | Open Document | Open Filing | FORM 3 | 01 May 2020 | 24 Apr 2020 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Dec 2019 | 11 Dec 2019 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2019 | 10 Dec 2019 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Nov 2019 | 13 Nov 2019 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Nov 2019 | 08 Nov 2019 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Nov 2019 | 07 Nov 2019 | 000-27905 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Nov 2019 | 04 Feb 2015 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2017 | 02 Aug 2017 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Aug 2017 | 31 Jul 2017 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jul 2017 | 28 Jul 2017 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Jul 2017 | 26 Jul 2017 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jul 2017 | 11 Jul 2017 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jul 2017 | 05 Jul 2017 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2017 | 03 Jul 2017 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jul 2017 | 03 Jul 2017 | 000-27905 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2015 | 04 Feb 2015 | 000-27905 |