| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 12/01/11 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/01/11 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/10/11 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/03/11 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/01/11 | 8-K | Current report filing | 
       
   | 
  15 | |
| 10/31/11 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) | 
       
   | 
  
                                | 
  64 | 
| 10/04/11 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 10/04/11 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 10/04/11 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/13/11 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 




