| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2021 | 25 May 2021 | 000-14703 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2020 | 19 May 2020 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2019 | 21 May 2019 | 000-14703 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2019 | 31 Dec 2018 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2018 | 22 May 2018 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2017 | 01 Jun 2017 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2017 | 24 May 2017 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2017 | 23 May 2017 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Nov 2016 | 23 Nov 2016 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2016 | 01 May 2016 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2015 | 01 May 2015 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Oct 2014 | 29 Oct 2014 | 000-14703 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2014 | 01 May 2014 | 000-14703 |