| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jun 2021 | 17 Jun 2021 | 000-53297 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jan 2020 | 31 Dec 2019 | 000-53297 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2019 | 04 Feb 2019 | 000-53297 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2017 | 31 Dec 2016 | 000-53297 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jan 2016 | 31 Dec 2015 | 000-53297 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jan 2015 | 31 Dec 2014 | 000-53297 |