| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 08 Feb 2023 | 06 Feb 2023 | 000-17795 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Nov 2022 | 06 Nov 2022 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2022 | 02 Mar 2022 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2022 | 09 Feb 2022 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2021 | 07 Nov 2021 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2021 | 03 Mar 2021 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Nov 2020 | 01 Nov 2020 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Nov 2019 | 06 Nov 2019 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2019 | 04 Nov 2019 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2019 | 02 Nov 2019 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2018 | 07 Nov 2018 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2018 | 04 Nov 2018 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Nov 2017 | 01 Nov 2017 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Aug 2017 | 22 Aug 2017 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Dec 2016 | 28 Nov 2016 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Nov 2016 | 02 Nov 2016 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Aug 2016 | 22 Aug 2016 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2015 | 04 Nov 2015 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Aug 2015 | 22 Aug 2015 | 000-17795 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Aug 2014 | 22 Aug 2014 | 000-17795 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Aug 2014 | 22 Aug 2014 | 000-17795 |