| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 May 2021 | 05 May 2021 | 001-04298 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 May 2020 | 06 May 2020 | 001-04298 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Sep 2019 | 04 Sep 2019 | 001-04298 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 05 Sep 2019 | 04 Sep 2019 | 001-04298 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Feb 2019 | 01 Feb 2019 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2018 | 09 Aug 2018 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2017 | 02 Oct 2017 | 000-12853 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2017 | 02 Oct 2017 | 000-12853 |