| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 12/02/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 12/02/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 11/14/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 11/14/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 11/02/11 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 10/31/11 | Statement of changes in beneficial ownership of securities |
|
2 |