| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2022 | 31 Oct 2022 | 000-55626 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 17 Feb 2022 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2022 | 09 Feb 2022 | 000-55626 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Oct 2021 | 04 Oct 2021 | 000-55626 |
| 4 | Open Document | Open Filing | 08 Jan 2020 | 06 Jan 2020 | 000-55626 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO.1 TO SCHEDULE 13G | 15 Feb 2019 | ||
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO.1 TO SCHEDULE 13G | 14 Feb 2018 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2018 | 05 Feb 2018 | 000-55626 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2018 | 23 Jan 2018 | 000-55626 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Oct 2017 | 06 Oct 2017 | 000-55626 |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 14 Feb 2017 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Oct 2016 | 04 Oct 2016 | 000-55626 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Jun 2016 | 28 Jun 2016 | 000-55626 |