| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 11/12/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/25/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/25/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/25/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/19/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/11/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/05/20 | 4/A | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/04/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/02/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/02/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

