| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jun 2021 | 07 Jun 2021 | 000-55320 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Sep 2018 | 08 Aug 2018 | 000-55320 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jul 2018 | 25 Jul 2018 | 000-55320 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jun 2018 | 19 Jun 2018 | 000-55320 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2018 | 26 Jan 2018 | 000-55320 |