Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
---|---|---|---|---|---|---|
4 | Open Document | Open Filing | FORM 4 | Jan 4, 2022 | Dec 31, 2021 | 000-55779 |
4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Dec 15, 2020 | 000-55779 |
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Jan 4, 2021 | 000-55779 |
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 17, 2020 | Jun 15, 2020 | 000-55779 |
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 16, 2020 | Jun 20, 2019 | 000-55779 |
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 29, 2017 | Dec 15, 2017 | 000-55779 |
3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2017 | Apr 28, 2017 | 000-55779 |