| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SCHEDULE 13D/A | Open Document | Open Filing | Jul 9, 2025 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 26, 2019 | Nov 25, 2019 | 000-30351 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Nov 26, 2019 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Nov 20, 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 20, 2019 | Jan 4, 2019 | 000-30351 |
| SC 13D | Open Document | Open Filing | SC 13D | Nov 18, 2019 | ||
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Nov 15, 2019 | Dec 31, 2018 | 000-30351 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Nov 15, 2019 | Dec 31, 2017 | 000-30351 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 30, 2017 | May 26, 2017 | 000-30351 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 10, 2017 | Dec 31, 2016 | 000-30351 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 5, 2017 | Dec 14, 2016 | 000-30351 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 28, 2016 | Jan 1, 2016 | 000-30351 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2015 | Dec 14, 2015 | 000-30351 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 1, 2015 | Jan 7, 2015 | 000-30351 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 3, 2014 | Jun 30, 2014 | 000-30351 |