| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2022 | 30 Jun 2021 | 000-53929 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Apr 2021 | 24 Dec 2020 | 000-53929 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jul 2017 | 07 Jul 2017 | 000-53929 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Apr 2017 | 31 Mar 2017 | 000-53929 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2016 | 16 Dec 2016 | 000-53929 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2016 | 31 Oct 2016 | 000-53929 |