| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 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 | |
| 11/13/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/10/20 | SC 13D/A | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 
       
   | 
  8 | |
| 11/10/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/06/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

