| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jun 2023 | 19 Nov 2018 | 000-53505 |
| SC 13D | Open Document | Open Filing | SCH. 13D | 05 Jun 2023 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2017 | 01 Dec 2017 | 000-53505 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Oct 2017 | 31 Dec 2016 | 000-53505 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Aug 2016 | 20 Jun 2016 | 000-53505 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jul 2016 | 05 Jul 2016 | 000-53505 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jun 2016 | 06 May 2016 | 000-53505 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2016 | 02 May 2016 | 000-53505 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2016 | 31 Dec 2015 | 000-53505 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2015 | 07 May 2015 | 000-53505 |
| 5/A | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2015 | 31 Dec 2014 | 000-53505 |
| 5/A | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2015 | 31 Dec 2014 | 000-53765 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2015 | 31 Dec 2014 | 000-53765 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Feb 2015 | 31 Dec 2014 | 000-53505 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Oct 2014 | 31 Dec 2013 | 000-53765 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Oct 2014 | 31 Dec 2013 | 000-53505 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 May 2014 | 31 Dec 2013 | 000-53505 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2014 | 31 Dec 2013 | 000-53765 |