| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jun 2023 | 05 Jun 2023 | 000-22957 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jul 2022 | 08 Jul 2022 | 000-22957 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jul 2021 | 09 Jul 2021 | 000-22957 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Dec 2020 | 11 Dec 2020 | 000-22957 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Aug 2020 | 26 Aug 2020 | 000-22957 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jun 2019 | 18 Jun 2019 | 000-22957 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Apr 2018 | 28 Feb 2018 | 000-22957 |