| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 01/03/07 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/27/06 | SC 13G/A | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | 
       
   | 
  6 | |
| 12/26/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/20/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/20/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/20/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/19/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/13/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 12/11/06 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/02/06 | 8-K | Current report filing | 
       
   | 
  5 | 
