| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 07/06/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 07/06/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 07/05/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/29/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/29/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/28/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/28/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/28/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/22/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/21/18 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | 
