| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2024 | 14 May 2024 | 001-14605 |
| 4 | Open Document | Open Filing | 12 Sep 2022 | 08 Sep 2022 | 001-14605 | |
| 3 | Open Document | Open Filing | 12 Sep 2022 | 08 Sep 2022 | 001-14605 | |
| 4 | Open Document | Open Filing | 30 Jun 2022 | 19 Apr 2022 | 001-40202 | |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 07 Jan 2019 | ||
| 4 | Open Document | Open Filing | 21 Dec 2018 | 21 Dec 2018 | 000-31587 | |
| 4 | Open Document | Open Filing | OWNERSHIP FORM TYPE 4 | 05 Jan 2018 | 03 Jan 2018 | 000-31587 |
| 3 | Open Document | Open Filing | OWNERSHIP FORM TYPE 3 | 29 Aug 2017 | 18 Aug 2017 | 000-31587 |
| 3 | Open Document | Open Filing | 24 Jul 2017 | 14 Jul 2017 | 000-55141 | |
| 4 | Open Document | Open Filing | FORM 4 | 07 Dec 2016 | 13 Sep 2016 | 000-31587 |
| 3 | Open Document | Open Filing | FORM 3 | 07 Dec 2016 | 01 Nov 2015 | 000-31587 |