| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/01/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/01/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/11/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/11/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/08/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/05/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/04/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/04/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/04/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/30/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

