| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 08/21/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/05/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/11/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/11/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/11/13 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  2 | |
| 07/01/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/01/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/26/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/26/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/26/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 
