| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 18 Dec 2023 | 14 Dec 2023 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Nov 2023 | 08 Nov 2023 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Nov 2023 | 03 Nov 2023 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Feb 2023 | 06 Feb 2023 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Nov 2022 | 08 Nov 2022 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Nov 2022 | 07 Nov 2022 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Nov 2022 | 03 Nov 2022 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 05 May 2022 | 03 May 2022 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Feb 2022 | 04 Feb 2022 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Nov 2021 | 09 Nov 2021 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Nov 2021 | 04 Feb 2021 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Nov 2021 | 03 Nov 2021 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Sep 2021 | 10 Sep 2021 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 05 May 2021 | 03 May 2021 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Feb 2021 | 05 Feb 2021 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Nov 2020 | 05 Nov 2020 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Sep 2020 | 11 Sep 2020 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Feb 2020 | 04 Feb 2020 | 000-26841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Mar 2019 | 18 Mar 2019 | 000-26841 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Mar 2019 | 18 Mar 2019 | 000-26841 |