| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Mar 2022 | 02 Mar 2022 | 000-54799 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2020 | 18 Feb 2020 | 000-54799 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2019 | 19 Feb 2019 | 000-54799 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Nov 2018 | 14 Nov 2018 | 000-54799 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Mar 2013 | 05 Mar 2013 | 000-01402 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Dec 2012 | 13 Dec 2012 | 000-01402 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Nov 2012 | 28 Nov 2012 | 000-01402 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Nov 2012 | 13 Nov 2012 | 000-01402 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Mar 2012 | 08 Mar 2012 | 000-01402 |