| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 08/01/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/30/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/30/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/30/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/30/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/30/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/30/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/30/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/29/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/26/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

