| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Oct 2021 | 20 Oct 2021 | 001-39419 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Aug 2020 | 04 Aug 2020 | 001-39419 |
| 4 | Open Document | Open Filing | 4 | 09 Apr 2018 | 05 Apr 2018 | 000-50463 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jun 2017 | 14 Jun 2017 | 000-50463 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jun 2016 | 08 Jun 2016 | 000-50463 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2015 | 10 Jun 2015 | 000-50463 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Dec 2014 | 05 Dec 2014 | 000-26579 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Aug 2014 | 01 Aug 2014 | 000-26579 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2014 | 30 Jun 2014 | 000-26579 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2014 | 11 Jun 2014 | 000-50463 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jun 2014 | 11 Jun 2014 | 000-50463 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2014 | 27 Feb 2014 | 000-26579 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2014 | 19 Dec 2012 | 000-26579 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2014 | 02 Feb 2014 | 000-26579 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jan 2014 | 17 Jan 2014 | 000-26579 |