| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 12/06/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/06/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/06/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/04/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/03/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/03/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/30/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/27/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/21/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/21/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 
