| 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 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2022 | 31 Dec 2021 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Mar 2021 | 08 Mar 2021 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jan 2017 | 20 Jan 2017 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jul 2016 | 25 Jul 2016 | 000-14384 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2014 | 18 Nov 2014 | 000-14384 |