| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 10/03/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 10/01/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 10/01/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 10/01/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/23/19 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  3 | |
| 09/18/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/17/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/05/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/04/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/29/19 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

