| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/24/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/16/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 10/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 10/26/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 09/16/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 08/23/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 08/08/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 08/08/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 07/29/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 06/14/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |
