| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 28 Nov 2022 | 23 Nov 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Oct 2022 | 09 Oct 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Sep 2022 | 01 Sep 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Aug 2022 | 23 Aug 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Jul 2022 | 09 Jul 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jun 2022 | 01 Jun 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 25 May 2022 | 23 May 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2022 | 10 May 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Apr 2022 | 09 Apr 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Mar 2022 | 01 Mar 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Feb 2022 | 23 Feb 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Jan 2022 | 09 Jan 2022 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2021 | 09 Dec 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Nov 2021 | 23 Nov 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Oct 2021 | 09 Oct 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Aug 2021 | 23 Aug 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Jul 2021 | 09 Jul 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 25 May 2021 | 23 May 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Apr 2021 | 09 Apr 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Feb 2021 | 23 Feb 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Jan 2021 | 09 Jan 2021 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Oct 2020 | 09 Oct 2020 | 000-24429 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jul 2020 | 09 Jul 2020 | 000-24429 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 13 Jul 2020 | 09 Jul 2020 | 000-24429 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2017 | 20 Apr 2017 | 001-08729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2017 | 09 Feb 2017 | 001-08729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2017 | 03 Feb 2017 | 001-08729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Apr 2016 | 20 Apr 2016 | 001-08729 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Apr 2016 | 19 Apr 2016 | 001-08729 |