| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 08/17/12 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/16/12 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 08/10/12 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) | 
       
   | 
  
                                | 
  30 | 
| 08/09/12 | 8-K | Current report filing | 
       
   | 
  14 | |
| 08/03/12 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/27/12 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/27/12 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/27/12 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/27/12 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 06/21/12 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 



