| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Oct 22, 2024 | Oct 15, 2024 | 000-50331 | |
| SC 13D/A | Open Document | Open Filing | Mar 14, 2024 | |||
| 4 | Open Document | Open Filing | Jan 3, 2024 | Nov 28, 2023 | 000-50331 | |
| 4 | Open Document | Open Filing | Nov 10, 2021 | Aug 17, 2021 | 000-50331 | |
| SC 13D/A | Open Document | Open Filing | Jun 6, 2019 | |||
| 4/A | Open Document | Open Filing | Apr 26, 2019 | Dec 21, 2018 | 000-50331 | |
| 3 | Open Document | Open Filing | Sep 14, 2018 | Sep 12, 2018 | 000-50331 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13D | Apr 27, 2016 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 22, 2016 | Apr 20, 2016 | 000-22735 |