| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 30, 2022 | Jun 21, 2022 | 000-12668 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 20, 2017 | Jan 18, 2017 | 000-12668 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2014 | Feb 20, 2014 | 000-12668 |