| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| NT 10-Q | Open Document | Open Filing | Nov 18, 2025 | Sep 30, 2025 | 000-30264 | |
| NT 10-Q | Open Document | Open Filing | Aug 22, 2025 | Jun 30, 2025 | 000-30264 | |
| 8-K | Open Document | Data | Open Filing | Jul 21, 2025 | Jul 18, 2025 | 000-30264 | |
| NT 10-Q | Open Document | Open Filing | May 15, 2025 | Mar 31, 2025 | 000-30264 | |
| NT 10-K | Open Document | Open Filing | Mar 28, 2025 | Dec 31, 2024 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Nov 21, 2024 | Sep 30, 2024 | 000-30264 | |
| NT 10-Q | Open Document | Open Filing | Nov 15, 2024 | Sep 30, 2024 | 000-30264 | |
| 8-K | Open Document | Data | Open Filing | Nov 4, 2024 | Nov 4, 2024 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Aug 30, 2024 | Jun 30, 2024 | 000-30264 | |
| NT 10-Q | Open Document | Open Filing | Aug 16, 2024 | Jun 30, 2024 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | May 17, 2024 | Mar 31, 2024 | 000-30264 | |
| NT 10-Q | Open Document | Open Filing | May 16, 2024 | Mar 31, 2024 | 000-30264 | |
| 8-K | Open Document | Data | Open Filing | May 10, 2024 | May 10, 2024 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | May 1, 2024 | Dec 31, 2023 | 000-30264 | |
| NT 10-K | Open Document | Open Filing | Mar 28, 2024 | Dec 31, 2023 | 000-30264 | |
| S-8 | Open Document | Open Filing | Jan 18, 2024 | 333-276563 | ||
| DEF 14C | Open Document | Open Filing | Jan 4, 2024 | Dec 20, 2023 | 000-30264 | |
| PRE 14C | Open Document | Open Filing | Dec 20, 2023 | Dec 20, 2023 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Nov 14, 2023 | Sep 30, 2023 | 000-30264 | |
| 8-K | Open Document | Data | Open Filing | Oct 31, 2023 | Oct 31, 2023 | 000-30264 | |
| UPLOAD | Open Document | Open Filing | Sep 29, 2023 | |||
| 10-K/A | Open Document | Data | Open Filing | AMENDMENT NO. 3 | Sep 28, 2023 | Dec 31, 2022 | 000-30264 |
| UPLOAD | Open Document | Open Filing | Sep 7, 2023 | |||
| 10-K/A | Open Document | Data | Open Filing | AMENDMENT NO. 2 | Aug 17, 2023 | Dec 31, 2022 | 000-30264 |
| 10-Q | Open Document | Data | Open Filing | Aug 14, 2023 | Jun 30, 2023 | 000-30264 | |
| UPLOAD | Open Document | Open Filing | Aug 4, 2023 | |||
| 10-K/A | Open Document | Data | Open Filing | AMENDMENT NO. 1 | Jun 29, 2023 | Dec 31, 2022 | 000-30264 |
| CORRESP | Open Document | Open Filing | Jun 26, 2023 | |||
| UPLOAD | Open Document | Open Filing | Jun 12, 2023 | |||
| 10-Q | Open Document | Data | Open Filing | May 15, 2023 | Mar 31, 2023 | 000-30264 | |
| 8-K/A | Open Document | Data | Open Filing | AMENDMENT NO. 1 | May 12, 2023 | May 12, 2023 | 000-30264 |
| 8-K | Open Document | Data | Open Filing | Apr 26, 2023 | Apr 26, 2023 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | Apr 13, 2023 | Dec 31, 2022 | 000-30264 | |
| DEF 14C | Open Document | Open Filing | Apr 3, 2023 | Apr 3, 2023 | 000-30264 | |
| NT 10-K | Open Document | Open Filing | Mar 31, 2023 | Dec 31, 2022 | 000-30264 | |
| PRE 14C | Open Document | Open Filing | Mar 22, 2023 | Mar 22, 2023 | 000-30264 | |
| 8-K | Open Document | Data | Open Filing | Feb 6, 2023 | Feb 1, 2023 | 000-30264 | |
| DEF 14C | Open Document | Open Filing | Jan 30, 2023 | Jan 30, 2023 | 000-30264 | |
| PRE 14C | Open Document | Open Filing | Jan 20, 2023 | Jan 20, 2023 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Jan 4, 2023 | Sep 30, 2022 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Dec 23, 2022 | Jun 30, 2022 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Dec 23, 2022 | Mar 31, 2022 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | Dec 23, 2022 | Dec 31, 2021 | 000-30264 | |
| 8-K/A | Open Document | Data | Open Filing | AMENDMENT NO. 1 | Oct 7, 2022 | Oct 7, 2022 | 000-30264 |
| 8-K | Open Document | Data | Open Filing | Sep 23, 2022 | Sep 23, 2022 | 000-30264 | |
| NT 10-K | Open Document | Open Filing | Mar 31, 2022 | Dec 31, 2021 | 000-30264 | |
| 8-K | Open Document | Data | Open Filing | Feb 24, 2022 | Feb 24, 2022 | 000-30264 | |
| 8-K | Open Document | Data | Open Filing | Jan 21, 2022 | Jan 21, 2022 | 000-30264 | |
| 10-Q/A | Open Document | Data | Open Filing | AMENDMENT NO. 1 | Jan 11, 2022 | Sep 30, 2021 | 000-30264 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2022 | Dec 31, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2022 | Dec 31, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2022 | Oct 28, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2022 | Dec 31, 2021 | |
| 8-K | Open Document | Data | Open Filing | Jan 5, 2022 | Jan 5, 2022 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Nov 12, 2021 | Sep 30, 2021 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Aug 16, 2021 | Jun 30, 2021 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | May 14, 2021 | Mar 31, 2021 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | Mar 30, 2021 | Dec 31, 2020 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Nov 16, 2020 | Sep 30, 2020 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Aug 14, 2020 | Jun 30, 2020 | 000-30264 | |
| 8-K | Open Document | Open Filing | Jul 28, 2020 | Jul 28, 2020 | 000-30264 | |
| DEF 14C | Open Document | Open Filing | May 26, 2020 | May 26, 2020 | 000-30264 | |
| 8-K/A | Open Document | Open Filing | AMENDMENT NO. 1 | May 19, 2020 | Jan 23, 2020 | 000-30264 |
| 10-Q | Open Document | Data | Open Filing | May 14, 2020 | Mar 31, 2020 | 000-30264 | |
| PRE 14C | Open Document | Open Filing | May 13, 2020 | May 13, 2020 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | Mar 30, 2020 | Dec 31, 2019 | 000-30264 | |
| 8-K | Open Document | Open Filing | Jan 23, 2020 | Jan 23, 2020 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Nov 14, 2019 | Sep 30, 2019 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Aug 14, 2019 | Jun 30, 2019 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | May 15, 2019 | Mar 31, 2019 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | Apr 1, 2019 | Dec 31, 2018 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Nov 14, 2018 | Sep 30, 2018 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Aug 14, 2018 | Jun 30, 2018 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | May 15, 2018 | Mar 31, 2018 | 000-30264 | |
| 8-K | Open Document | Open Filing | May 9, 2018 | May 9, 2018 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | Apr 16, 2018 | Dec 31, 2017 | 000-30264 | |
| NT 10-K | Open Document | Open Filing | Mar 29, 2018 | Dec 31, 2017 | 000-30264 | |
| 8-K | Open Document | Open Filing | Mar 20, 2018 | Mar 20, 2018 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Nov 14, 2017 | Sep 30, 2017 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Aug 14, 2017 | Jun 30, 2017 | 000-30264 | |
| 8-K | Open Document | Open Filing | Jul 5, 2017 | Jul 5, 2017 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | May 15, 2017 | Mar 31, 2017 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | Apr 14, 2017 | Dec 31, 2016 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Apr 14, 2017 | Sep 30, 2016 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Apr 14, 2017 | Jun 30, 2016 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | Apr 14, 2017 | Mar 31, 2016 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | Apr 14, 2017 | Dec 31, 2015 | 000-30264 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 13, 2017 | Aug 28, 2015 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 13, 2017 | Feb 23, 2015 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 13, 2017 | Aug 28, 2015 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 13, 2017 | Feb 23, 2015 | |
| NT 10-K | Open Document | Open Filing | Mar 31, 2017 | Dec 31, 2016 | 000-30264 | |
| NT 10-K | Open Document | Open Filing | FOR PERIOD ENDED DECEMBER 31, 2015 | Mar 30, 2016 | Dec 31, 2015 | 000-30264 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 5 TO SCHEDULE 13G | Feb 16, 2016 | 005-61995 | |
| 10-Q | Open Document | Data | Open Filing | FOR THE QUARTERLY PERIOD ENDED: SEPTEMBER 30, 2015 | Nov 13, 2015 | Sep 30, 2015 | 000-30264 |
| DEF 14C | Open Document | Open Filing | Sep 10, 2015 | Sep 10, 2015 | 000-30264 | |
| 8-K | Open Document | Open Filing | Aug 28, 2015 | Aug 28, 2015 | 000-30264 | |
| PRE 14C | Open Document | Open Filing | Aug 28, 2015 | Sep 10, 2015 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2015 | Aug 14, 2015 | Jun 30, 2015 | 000-30264 |
| 8-K | Open Document | Open Filing | Aug 11, 2015 | Aug 11, 2015 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | FOR THE QUARTERLY PERIOD ENDED: MARCH 31, 2015 | May 14, 2015 | Mar 31, 2015 | 000-30264 |
| DEF 14C | Open Document | Open Filing | May 4, 2015 | May 6, 2015 | 000-30264 | |
| PRE 14C | Open Document | Open Filing | Apr 22, 2015 | May 6, 2015 | 000-30264 | |
| 10-K | Open Document | Data | Open Filing | FOR THE FISCAL YEAR ENDED DECEMBER 31, 2014 | Apr 15, 2015 | Dec 31, 2014 | 000-30264 |
| NT 10-K | Open Document | Open Filing | FOR PERIOD ENDED DECEMBER 31, 2014 | Mar 31, 2015 | Dec 31, 2014 | 000-30264 |
| 8-K | Open Document | Open Filing | Feb 23, 2015 | Feb 23, 2015 | 000-30264 | |
| DEF 14C | Open Document | Open Filing | Feb 18, 2015 | Feb 18, 2015 | 000-30264 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 4 TO SCHEDULE 13G | Feb 17, 2015 | 005-61995 | |
| 8-K | Open Document | Open Filing | Nov 28, 2014 | Nov 28, 2014 | 000-30264 | |
| 10-Q | Open Document | Data | Open Filing | FOR THE QUARTERLY PERIOD ENDED: SEPTEMBER 30, 2014 | Nov 19, 2014 | Sep 30, 2014 | 000-30264 |
| 10-Q | Open Document | Data | Open Filing | FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2014 | Nov 19, 2014 | Jun 30, 2014 | 000-30264 |
| NT 10-Q | Open Document | Open Filing | FOR PERIOD ENDED SEPTEMBER 30, 2014 | Nov 14, 2014 | Sep 30, 2014 | 000-30264 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 3 TO SCHEDULE 13G | Sep 5, 2014 | 005-61995 | |
| 10-Q | Open Document | Data | Open Filing | FOR THE QUARTERLY PERIOD ENDED: MARCH 31, 2014 | May 15, 2014 | Mar 31, 2014 | 000-30264 |
| 10-K | Open Document | Data | Open Filing | FOR THE FISCAL YEAR ENDED DECEMBER 31, 2013 | Mar 31, 2014 | Dec 31, 2013 | 000-30264 |
| 8-K | Open Document | Open Filing | Feb 26, 2014 | Feb 26, 2014 | 000-30264 | |
| S-8 | Open Document | Open Filing | Jan 16, 2014 | 333-193381 |