| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/25/21 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/10/21 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/10/21 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/05/21 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 09/08/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 06/11/20 | 4 | Statement of changes in beneficial ownership of securities |   | 3 | |
| 05/22/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 05/22/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 05/22/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 05/22/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 |