| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 05 Jul 2022 | 30 Jun 2022 | 000-27687 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 14 Jun 2021 | 10 Jun 2021 | 000-27687 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jul 2020 | 17 Jul 2020 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jun 2019 | 11 Jun 2019 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Dec 2018 | 04 Dec 2018 | 000-27687 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Nov 2018 | 02 Nov 2018 | 000-27687 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 06 Nov 2018 | 02 Nov 2018 | 000-27687 |