| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/03/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  4 | |
| 01/03/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  4 | |
| 01/03/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/03/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/26/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/19/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/05/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/05/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/05/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/05/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  4 | 

