| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 03 Jan 2022 | 21 Dec 2021 | 000-12641 | |
| 4/A | Open Document | Open Filing | 07 Apr 2021 | 23 Mar 2021 | 000-12641 | |
| 4 | Open Document | Open Filing | 07 Apr 2021 | 23 Mar 2021 | 000-12641 |