| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 09/26/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 09/26/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 09/26/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  6 | ||
| 09/24/12 | Current report filing | 
       
   | 
  3 | ||
| 09/24/12 | Current report filing | 
       
   | 
  27 | ||
| 09/24/12 | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 
       
   | 
  22 | ||
| 08/27/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 08/22/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 08/13/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 08/03/12 | Current report filing | 
       
   | 
  5 | 
