| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Oct 15, 2021 | Jun 15, 2020 | 000-55591 | |
| 3 | Open Document | Open Filing | Oct 15, 2021 | Feb 5, 2020 | 000-55591 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2014 | Jan 14, 2014 | 000-55128 |