| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 11/23/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 11/10/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 11/07/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 09/07/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 08/26/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 08/01/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 07/27/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/17/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/17/11 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 05/17/11 | Statement of changes in beneficial ownership of securities |
|
1 |