| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5/A | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jan 2022 | 31 Dec 2021 | 000-14384 |
| 5/A | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2022 | 31 Dec 2021 | 000-14384 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2022 | 31 Dec 2017 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Nov 2020 | 16 Nov 2020 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2020 | 20 Feb 2020 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Apr 2017 | 24 Apr 2017 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2017 | 27 Jan 2017 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Sep 2016 | 13 Sep 2016 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Sep 2016 | 13 Sep 2016 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2013 | 07 Nov 2013 | 000-14384 |