| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 May 2022 | 13 May 2022 | 000-25259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Nov 2021 | 18 Nov 2021 | 000-25259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Nov 2020 | 23 Nov 2020 | 000-25259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Dec 2019 | 04 Dec 2019 | 000-25259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2018 | 15 Nov 2018 | 000-25259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2018 | 08 Feb 2018 | 000-25259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2017 | 16 Nov 2017 | 000-25259 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Apr 2017 | 21 Apr 2017 | 000-25259 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Apr 2017 | 21 Apr 2017 | 000-25259 |