| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2022 | 01 Apr 2022 | 000-23325 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2020 | 28 Feb 2020 | 000-23325 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Mar 2019 | 26 Mar 2019 | 000-23325 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Mar 2018 | 19 Mar 2018 | 000-23325 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Feb 2016 | 25 Feb 2016 | 000-23325 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2015 | 03 Feb 2015 | 000-23325 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2014 | 04 Feb 2014 | 000-23325 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Apr 2012 | 26 Apr 2012 | 000-23325 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Jan 2012 | 27 Jan 2012 | 000-23325 |