| 8-K | Current report | May 23, 2022 | |
| NT 10-Q | Notification of inability to timely file Form 10-Q or 10-QSB | May 16, 2022 | |
| UPLOAD | SEC-generated letter | May 2, 2022 | |
| S-3 | Registration statement under Securities Act of 1933 | April 27, 2022 | |
| 10-K | Annual report [Section 13 and 15(d), not S-K Item 405] | March 15, 2022 | |
| 8-K | Current report | February 24, 2022 | |
| 4 | Statement of changes in beneficial ownership of securities | January 26, 2022 | |
| 4 | Statement of changes in beneficial ownership of securities | January 26, 2022 | |
| 4 | Statement of changes in beneficial ownership of securities | January 26, 2022 | |
| 3 | Initial statement of beneficial ownership of securities | January 10, 2022 | |