| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 06/17/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/17/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 06/16/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 06/15/15 | Initial statement of beneficial ownership of securities | 
       
   | 
  2 | ||
| 06/10/15 | Initial statement of beneficial ownership of securities | 
       
   | 
  2 | ||
| 06/04/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 06/04/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 04/10/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 04/02/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 04/02/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 


