| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2022 | 02 Mar 2022 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Aug 2021 | 09 Aug 2021 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jun 2021 | 12 May 2021 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2021 | 10 Mar 2021 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jun 2020 | 24 Jun 2020 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2020 | 04 May 2020 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2019 | 28 Jun 2019 | 000-18277 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 Jul 2018 | 26 Jul 2018 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 May 2018 | 27 Apr 2018 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2018 | 27 Feb 2018 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2017 | 27 Apr 2017 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Dec 2016 | 06 Dec 2016 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Nov 2014 | 05 Nov 2014 | 000-18277 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jul 2014 | 28 Jul 2014 | 000-18277 |