| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/02/14 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/24/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 10/31/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 10/24/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/09/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/12/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/02/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/31/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/24/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/24/13 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

