| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Sep 2023 | 28 Aug 2023 | 000-09587 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2022 | 15 Jul 2022 | 000-09587 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2019 | 15 May 2019 | 000-09587 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Nov 2014 | 13 Nov 2014 | 000-09587 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2013 | 28 Aug 2013 | 000-09587 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2012 | 18 Jul 2012 | 000-09587 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2012 | 18 Apr 2012 | 000-09587 |