| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 25, 2022 | Oct 24, 2022 | 000-24843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 9, 2022 | Aug 8, 2022 | 000-24843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 2, 2021 | Nov 30, 2021 | 000-24843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 10, 2021 | Jun 9, 2021 | 000-24843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 23, 2020 | Mar 19, 2020 | 000-24843 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Sep 19, 2019 | Sep 10, 2019 | 000-24843 |