| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Dec 1, 2025 | Jul 31, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 17, 2025 | Nov 12, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 17, 2025 | Nov 12, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 17, 2025 | Nov 1, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Aug 11, 2025 | Aug 8, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 26, 2025 | Jun 24, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 18, 2025 | Jun 17, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Apr 10, 2025 | Apr 9, 2025 | 000-15490 |
| D | Open Document | Open Filing | Apr 1, 2025 | 021-542658 | ||
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 19, 2025 | Mar 19, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 14, 2025 | Mar 13, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORMM 6-K | Feb 20, 2025 | Feb 13, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jan 15, 2025 | Jan 14, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jan 14, 2025 | Jan 13, 2025 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 19, 2024 | Dec 18, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 18, 2024 | Dec 17, 2024 | 000-15490 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Nov 29, 2024 | Jul 31, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Aug 21, 2024 | Aug 20, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 28, 2024 | Apr 30, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 20, 2024 | Jun 20, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 3, 2024 | Jun 3, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | May 7, 2024 | May 7, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Apr 9, 2024 | Apr 8, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 29, 2024 | Mar 28, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 20, 2024 | Mar 18, 2024 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 22, 2023 | Dec 21, 2023 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 12, 2023 | Dec 12, 2023 | 000-15490 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Nov 28, 2023 | Jul 31, 2023 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 31, 2023 | Oct 30, 2023 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 23, 2023 | Oct 20, 2023 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jul 18, 2023 | Jul 18, 2023 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 29, 2023 | Jun 28, 2023 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | May 31, 2023 | May 30, 2023 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 31, 2023 | Mar 30, 2023 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 20, 2022 | Dec 19, 2022 | 000-15490 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Nov 28, 2022 | Jul 31, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Nov 9, 2022 | Oct 27, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 31, 2022 | Oct 31, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 28, 2022 | Oct 27, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 28, 2022 | Oct 27, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Sep 8, 2022 | Sep 7, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 27, 2022 | Jun 24, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 21, 2022 | Jun 14, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 3, 2022 | Jun 2, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | May 24, 2022 | May 23, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 28, 2022 | Mar 28, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jan 12, 2022 | Jan 12, 2022 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 20, 2021 | Oct 31, 2021 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 8, 2021 | Dec 8, 2021 | 000-15490 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Nov 29, 2021 | Jul 31, 2021 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6K | Aug 17, 2021 | Aug 17, 2021 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jul 7, 2021 | Jul 7, 2021 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 21, 2021 | Jun 21, 2021 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 10, 2021 | Jun 10, 2021 | 000-15490 |
| 6-K | Open Document | Open Filing | 6-K | Mar 30, 2021 | Mar 29, 2021 | 000-15490 |
| 6-K | Open Document | Open Filing | REPORT OF FOREIGN PRIVATE ISSUER | Feb 4, 2021 | Feb 4, 2021 | 000-15490 |
| 6-K | Open Document | Open Filing | REPORT OF FOREIGN PRIVATE ISSUER | Dec 21, 2020 | Oct 31, 2020 | 000-15490 |
| 20-F | Open Document | Data | Open Filing | FORM 20-F | Nov 24, 2020 | Jul 31, 2020 | 000-15490 |
| 6-K | Open Document | Open Filing | 6-K | Jun 16, 2020 | Jun 16, 2020 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | May 26, 2020 | May 25, 2020 | 000-15490 |
| 6-K | Open Document | Open Filing | 6-K | Mar 30, 2020 | Mar 27, 2020 | 000-15490 |
| 6-K | Open Document | Open Filing | REPORT OF FOREIGN PRIVATE ISSUER | Mar 16, 2020 | Mar 16, 2020 | 000-15490 |
| 6-K | Open Document | Open Filing | Jan 16, 2020 | Jan 3, 2020 | 000-15490 | |
| 6-K | Open Document | Open Filing | Dec 3, 2019 | Dec 3, 2019 | 000-15490 | |
| 20-F | Open Document | Data | Open Filing | Nov 1, 2019 | Jul 31, 2019 | 000-15490 | |
| 6-K | Open Document | Open Filing | Jun 7, 2019 | Jun 7, 2019 | 000-15490 | |
| 6-K | Open Document | Open Filing | Apr 10, 2019 | Apr 10, 2019 | 000-15490 | |
| 6-K | Open Document | Open Filing | Mar 7, 2019 | Mar 7, 2019 | 000-15490 | |
| 6-K | Open Document | Open Filing | Feb 27, 2019 | Feb 27, 2019 | 000-15490 | |
| 6-K | Open Document | Open Filing | Dec 7, 2018 | Dec 6, 2018 | 000-15490 | |
| 20-F | Open Document | Data | Open Filing | Oct 16, 2018 | Jul 31, 2018 | 000-15490 | |
| 6-K | Open Document | Open Filing | Jun 1, 2018 | Jun 1, 2018 | 000-15490 | |
| 6-K | Open Document | Open Filing | Mar 6, 2018 | Mar 5, 2018 | 000-15490 | |
| 6-K | Open Document | Open Filing | Jan 3, 2018 | Jan 2, 2018 | 000-15490 | |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 18, 2017 | Dec 18, 2017 | 000-15490 |
| 6-K | Open Document | Open Filing | Dec 8, 2017 | Dec 7, 2017 | 000-15490 | |
| 6-K | Open Document | Open Filing | Dec 8, 2017 | Dec 7, 2017 | 000-15490 | |
| 20-F | Open Document | Data | Open Filing | Oct 4, 2017 | Jul 31, 2017 | 000-15490 | |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 14, 2017 | Apr 30, 2017 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Feb 28, 2017 | Jan 31, 2017 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 16, 2016 | Oct 31, 2016 | 000-15490 |
| 20-F | Open Document | Open Filing | FORM 20-F | Oct 5, 2016 | Jul 31, 2016 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 5, 2016 | Jul 31, 2016 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 24, 2016 | Apr 30, 2016 | 000-15490 |
| 6-K | Open Document | Data | Open Filing | FORM 6-K | Mar 22, 2016 | Jan 31, 2016 | 000-15490 |
| 6-K | Open Document | Data | Open Filing | FORM 6-K | Mar 21, 2016 | Mar 18, 2016 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jan 26, 2016 | Feb 18, 2016 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jan 21, 2016 | Jan 20, 2016 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 9, 2015 | Oct 31, 2015 | 000-15490 |
| 20-F | Open Document | Open Filing | FORM 20-F | Nov 27, 2015 | Jul 31, 2015 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 29, 2015 | Jul 31, 2015 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 12, 2015 | Apr 30, 2015 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 31, 2015 | Mar 31, 2015 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jan 21, 2015 | Jan 20, 2015 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Dec 15, 2014 | Oct 31, 2014 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Oct 17, 2014 | Oct 16, 2014 | 000-15490 |
| 20-F | Open Document | Open Filing | FORM 20-F | Oct 17, 2014 | Jul 31, 2014 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Sep 30, 2014 | Jul 31, 2014 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Jun 13, 2014 | Apr 30, 2014 | 000-15490 |
| 6-K | Open Document | Open Filing | Apr 10, 2014 | Apr 9, 2014 | 000-15490 | |
| 6-K | Open Document | Open Filing | FORM 6-K | Apr 8, 2014 | Apr 4, 2014 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 20, 2014 | Jan 31, 2014 | 000-15490 |
| 6-K | Open Document | Open Filing | FORM 6-K | Mar 17, 2014 | Oct 31, 2013 | 000-15490 |
| 6-K | Open Document | Open Filing | REPORT OF FOREIGN PRIVATE ISSUER AS AT JANUARY 27, 2014 | Jan 29, 2014 | Feb 24, 2014 | 000-15490 |