| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 2, 2025 | Nov 29, 2025 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 29, 2025 | Oct 27, 2025 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Apr 30, 2025 | Dec 31, 2024 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 20, 2025 | Mar 20, 2025 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 19, 2024 | Dec 18, 2024 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 9, 2024 | Dec 9, 2024 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 27, 2024 | Nov 27, 2024 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 22, 2024 | Nov 21, 2024 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 29, 2024 | Oct 22, 2024 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 14, 2024 | Jun 14, 2024 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Apr 30, 2024 | Dec 31, 2023 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 27, 2023 | Dec 27, 2023 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 21, 2023 | Nov 21, 2023 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 30, 2023 | Oct 25, 2023 | 000-22113 |
| UPLOAD | Open Document | Open Filing | Aug 31, 2023 | |||
| 20-F/A | Open Document | Open Filing | FORM 20-F/A | Aug 28, 2023 | Dec 31, 2022 | 000-22113 |
| CORRESP | Open Document | Open Filing | Aug 18, 2023 | |||
| UPLOAD | Open Document | Open Filing | Aug 4, 2023 | |||
| CORRESP | Open Document | Open Filing | Jul 27, 2023 | |||
| UPLOAD | Open Document | Open Filing | Jul 20, 2023 | |||
| 20-F | Open Document | Data | Open Filing | FORM 20-F | May 12, 2023 | Dec 31, 2022 | 000-22113 |
| NT 20-F | Open Document | Open Filing | NT 20-F | May 1, 2023 | Dec 31, 2022 | 000-22113 |
| UPLOAD | Open Document | Open Filing | Feb 16, 2023 | |||
| 20-F/A | Open Document | Data | Open Filing | FORM 20-F/A | Feb 6, 2023 | Dec 31, 2021 | 000-22113 |
| UPLOAD | Open Document | Open Filing | Jan 30, 2023 | |||
| 6-K | Open Document | Open Filing | FORM 6-K | Jan 17, 2023 | Jan 12, 2023 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 28, 2022 | Dec 28, 2022 | 000-22113 |
| CORRESP | Open Document | Open Filing | Dec 23, 2022 | |||
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 22, 2022 | Nov 21, 2022 | 000-22113 |
| UPLOAD | Open Document | Open Filing | Nov 17, 2022 | |||
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 31, 2022 | Oct 28, 2022 | 000-22113 |
| CORRESP | Open Document | Open Filing | Sep 23, 2022 | |||
| 20-F/A | Open Document | Data | Open Filing | FORM 20-F/A | Sep 23, 2022 | Dec 31, 2021 | 000-22113 |
| UPLOAD | Open Document | Open Filing | Aug 23, 2022 | |||
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 14, 2022 | Jun 13, 2022 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | May 16, 2022 | Dec 31, 2021 | 000-22113 |
| NT 20-F | Open Document | Open Filing | NT 20F | Apr 29, 2022 | Dec 31, 2021 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Jan 20, 2022 | Jan 20, 2022 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 16, 2021 | Dec 16, 2021 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Dec 2, 2021 | Dec 2, 2021 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 19, 2021 | Nov 19, 2021 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 1, 2021 | Nov 12, 2021 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Jun 29, 2021 | Jun 28, 2021 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | 20-F | May 13, 2021 | Dec 31, 2020 | 000-22113 |
| NT 20-F | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 30, 2021 | Dec 31, 2020 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Feb 11, 2021 | Feb 11, 2021 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 31, 2020 | Dec 30, 2020 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 19, 2020 | Oct 19, 2020 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Sep 10, 2020 | Sep 9, 2020 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Jun 5, 2020 | Dec 31, 2019 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Apr 28, 2020 | Apr 28, 2020 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Mar 11, 2020 | Mar 11, 2020 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Dec 27, 2019 | Dec 27, 2019 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Sep 19, 2019 | Sep 19, 2019 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Aug 27, 2019 | Aug 27, 2019 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Aug 2, 2019 | Aug 1, 2019 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | 20-F | May 14, 2019 | Dec 31, 2018 | 000-22113 |
| NT 20-F | Open Document | Open Filing | NT 20-F | Apr 30, 2019 | Dec 31, 2018 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Apr 25, 2019 | Apr 24, 2019 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Mar 5, 2019 | Mar 4, 2019 | 000-22113 |
| 6-K | Open Document | Open Filing | 6K | Feb 25, 2019 | Feb 22, 2019 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Dec 28, 2018 | Dec 27, 2018 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Nov 14, 2018 | Nov 13, 2018 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 17, 2018 | Oct 15, 2018 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 1, 2018 | Jun 1, 2018 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | May 25, 2018 | May 25, 2018 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | May 14, 2018 | Dec 31, 2017 | 000-22113 |
| NT 20-F | Open Document | Open Filing | 12-B25 | Apr 30, 2018 | Dec 31, 2017 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Apr 2, 2018 | Mar 30, 2018 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jan 30, 2018 | Jan 29, 2018 | 000-22113 |
| SC 13G/A | Open Document | Open Filing | EXIT FILING | Jan 8, 2018 | 005-56715 | |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 27, 2017 | Dec 27, 2017 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 2, 2017 | Oct 26, 2017 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Sep 12, 2017 | Aug 17, 2017 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jul 12, 2017 | Jul 12, 2017 | 000-22113 |
| SC 13G | Open Document | Open Filing | May 25, 2017 | 005-56715 | ||
| 20-F | Open Document | Data | Open Filing | ANNUAL REPORT | Apr 26, 2017 | Dec 31, 2016 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Jan 27, 2017 | Jan 26, 2017 | 000-22113 |
| 6-K | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 15, 2016 | Dec 14, 2016 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Sep 6, 2016 | Aug 30, 2016 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jul 28, 2016 | Jul 28, 2016 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | ANNUAL REPORT | Apr 28, 2016 | Dec 31, 2015 | 000-22113 |
| 20-F/A | Open Document | Data | Open Filing | ANNUAL REPORT | Apr 28, 2016 | Dec 31, 2014 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Dec 24, 2015 | Dec 24, 2015 | 000-22113 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 12, 2015 | Nov 9, 2015 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Oct 13, 2015 | Oct 13, 2015 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Aug 26, 2015 | Aug 26, 2015 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | ANNUAL REPORT | Apr 29, 2015 | Dec 31, 2014 | 000-22113 |
| 6-K | Open Document | Open Filing | 6-K | Apr 1, 2015 | Apr 1, 2015 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Jan 2, 2015 | Dec 29, 2014 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Nov 5, 2014 | Oct 30, 2014 | 000-22113 |
| 6-K | Open Document | Open Filing | CURRENT REPORT | Oct 6, 2014 | Oct 3, 2014 | 000-22113 |
| 20-F/A | Open Document | Data | Open Filing | ANNUAL REPORT | Jul 17, 2014 | Dec 31, 2013 | 000-22113 |
| 20-F | Open Document | Data | Open Filing | 20-F | Apr 29, 2014 | Dec 31, 2013 | 000-22113 |