| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 12/28/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/28/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/23/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/09/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/02/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/25/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/25/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/20/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/18/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/18/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

